Finding the Fourth Proportional to 1,252,778.86, 1,728,839.53 and 679,819.08
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Solution
The fourth proportional to 1,252,778.86, 1,728,839.53 and 679,819.08 is: 938,152.88
Step by Step Solution
- Step 1: Write the proportion equation
1,252,778.86 : 1,728,839.53 = 679,819.08 : x - Step 2: Convert to fraction form
1,252,778.86/1,728,839.53 = 679,819.08/x - Step 3: Cross multiply
1,252,778.86x = 1,728,839.53 × 679,819.08 - Step 4: Simplify right side
1,252,778.86x = 1,175,298,098,752.23 - Step 5: Solve for x
x = 1,175,298,098,752.23/1,252,778.86 - Step 6: Final answer
x = 938,152.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.