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Finding the Fourth Proportional to 624,884.41, 862,339.17 and 338,403.61

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Solution

The fourth proportional to 624,884.41, 862,339.17 and 338,403.61 is: 466,996.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,884.41 : 862,339.17 = 338,403.61 : x
  2. Step 2: Convert to fraction form
    624,884.41/862,339.17 = 338,403.61/x
  3. Step 3: Cross multiply
    624,884.41x = 862,339.17 × 338,403.61
  4. Step 4: Simplify right side
    624,884.41x = 291,818,688,172.40
  5. Step 5: Solve for x
    x = 291,818,688,172.40/624,884.41
  6. Step 6: Final answer
    x = 466,996.27

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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.