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Finding the Fourth Proportional to 624,360.78, 861,617.82 and 337,880.86

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Solution

The fourth proportional to 624,360.78, 861,617.82 and 337,880.86 is: 466,275.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,360.78 : 861,617.82 = 337,880.86 : x
  2. Step 2: Convert to fraction form
    624,360.78/861,617.82 = 337,880.86/x
  3. Step 3: Cross multiply
    624,360.78x = 861,617.82 × 337,880.86
  4. Step 4: Simplify right side
    624,360.78x = 291,124,170,012.93
  5. Step 5: Solve for x
    x = 291,124,170,012.93/624,360.78
  6. Step 6: Final answer
    x = 466,275.56

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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.