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Finding the Fourth Proportional to 624,358.77, 861,615.05 and 337,878.87

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Solution

The fourth proportional to 624,358.77, 861,615.05 and 337,878.87 is: 466,272.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,358.77 : 861,615.05 = 337,878.87 : x
  2. Step 2: Convert to fraction form
    624,358.77/861,615.05 = 337,878.87/x
  3. Step 3: Cross multiply
    624,358.77x = 861,615.05 × 337,878.87
  4. Step 4: Simplify right side
    624,358.77x = 291,121,517,779.60
  5. Step 5: Solve for x
    x = 291,121,517,779.60/624,358.77
  6. Step 6: Final answer
    x = 466,272.81

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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.