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Finding the Fourth Proportional to 624,390.38, 861,658.71 and 337,910.46

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Solution

The fourth proportional to 624,390.38, 861,658.71 and 337,910.46 is: 466,316.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,390.38 : 861,658.71 = 337,910.46 : x
  2. Step 2: Convert to fraction form
    624,390.38/861,658.71 = 337,910.46/x
  3. Step 3: Cross multiply
    624,390.38x = 861,658.71 × 337,910.46
  4. Step 4: Simplify right side
    624,390.38x = 291,163,494,290.33
  5. Step 5: Solve for x
    x = 291,163,494,290.33/624,390.38
  6. Step 6: Final answer
    x = 466,316.43

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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.