Finding the Fourth Proportional to 715,087.44, 1,072,284.48 and 415,654.20
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Solution
The fourth proportional to 715,087.44, 1,072,284.48 and 415,654.20 is: 623,279.79
Step by Step Solution
- Step 1: Write the proportion equation
715,087.44 : 1,072,284.48 = 415,654.20 : x - Step 2: Convert to fraction form
715,087.44/1,072,284.48 = 415,654.20/x - Step 3: Cross multiply
715,087.44x = 1,072,284.48 × 415,654.20 - Step 4: Simplify right side
715,087.44x = 445,699,547,706.82 - Step 5: Solve for x
x = 445,699,547,706.82/715,087.44 - Step 6: Final answer
x = 623,279.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.