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Ratio Proportion Calculator

Solve a proportion a : b = c : ?. Free online calculator with instant results — no login needed.

x

What is the Ratio Proportion Calculator?

Solve a proportion a : b = c : ?. Free online calculator with instant results — no login needed.

Enter your values above and the result updates instantly. Finds the missing term.

Formula

a : b = c : x → x = b × c ÷ a

Example

x

FAQs

Example?

2:3 = 4:6.

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