Finding the Fourth Proportional to 572,905.60, 859,358.40 and 392,502.40
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Solution
The fourth proportional to 572,905.60, 859,358.40 and 392,502.40 is: 588,753.60
Step by Step Solution
- Step 1: Write the proportion equation
572,905.60 : 859,358.40 = 392,502.40 : x - Step 2: Convert to fraction form
572,905.60/859,358.40 = 392,502.40/x - Step 3: Cross multiply
572,905.60x = 859,358.40 × 392,502.40 - Step 4: Simplify right side
572,905.60x = 337,300,234,460.16 - Step 5: Solve for x
x = 337,300,234,460.16/572,905.60 - Step 6: Final answer
x = 588,753.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.