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Finding the Fourth Proportional to 624,404.46, 861,679.20 and 337,924.80

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Solution

The fourth proportional to 624,404.46, 861,679.20 and 337,924.80 is: 466,336.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,404.46 : 861,679.20 = 337,924.80 : x
  2. Step 2: Convert to fraction form
    624,404.46/861,679.20 = 337,924.80/x
  3. Step 3: Cross multiply
    624,404.46x = 861,679.20 × 337,924.80
  4. Step 4: Simplify right side
    624,404.46x = 291,182,771,324.16
  5. Step 5: Solve for x
    x = 291,182,771,324.16/624,404.46
  6. Step 6: Final answer
    x = 466,336.79

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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.