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Finding the Fourth Proportional to 624,447.81, 861,740.55 and 337,967.82

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Solution

The fourth proportional to 624,447.81, 861,740.55 and 337,967.82 is: 466,396.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,447.81 : 861,740.55 = 337,967.82 : x
  2. Step 2: Convert to fraction form
    624,447.81/861,740.55 = 337,967.82/x
  3. Step 3: Cross multiply
    624,447.81x = 861,740.55 × 337,967.82
  4. Step 4: Simplify right side
    624,447.81x = 291,240,575,089.10
  5. Step 5: Solve for x
    x = 291,240,575,089.10/624,447.81
  6. Step 6: Final answer
    x = 466,396.98

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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.