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Finding the Fourth Proportional to 574,472.60, 861,708.90 and 325,640.60

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Solution

The fourth proportional to 574,472.60, 861,708.90 and 325,640.60 is: 488,460.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,472.60 : 861,708.90 = 325,640.60 : x
  2. Step 2: Convert to fraction form
    574,472.60/861,708.90 = 325,640.60/x
  3. Step 3: Cross multiply
    574,472.60x = 861,708.90 × 325,640.60
  4. Step 4: Simplify right side
    574,472.60x = 280,607,403,221.34
  5. Step 5: Solve for x
    x = 280,607,403,221.34/574,472.60
  6. Step 6: Final answer
    x = 488,460.90

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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.