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Books Books 91 - 91 of 91 on The first of four magnitudes is said to have the same ratio to the second, which....
" The first of four magnitudes is said to have the same ratio to the second, which the third has to the fourth, when any equimultiples whatsoever of the first and third being taken, and any equimultiples whatsoever of the second and fourth; if the multiple... "
A system of practical mathematics; being no.xvi. of a new series of school-books - Page 111
1845
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Practical Arithmetic, by Induction and Analysis, Book 3

Joseph Ray - Arithmetic - 1857 - 320 pages
...PR0P0RTI0N. ART. 197. Proportion is an equality of ratios. Four numbers are proportional, when the first has the same ratio to the second that. the third has to the fourth. REVIEW. — 19i. How is a ratio affected by multiplying the consequent, or dividing the antecedent...
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