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Finding the Fourth Proportional to 624,392.68, 861,661.87 and 337,912.76

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Solution

The fourth proportional to 624,392.68, 861,661.87 and 337,912.76 is: 466,319.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,392.68 : 861,661.87 = 337,912.76 : x
  2. Step 2: Convert to fraction form
    624,392.68/861,661.87 = 337,912.76/x
  3. Step 3: Cross multiply
    624,392.68x = 861,661.87 × 337,912.76
  4. Step 4: Simplify right side
    624,392.68x = 291,166,540,678.46
  5. Step 5: Solve for x
    x = 291,166,540,678.46/624,392.68
  6. Step 6: Final answer
    x = 466,319.59

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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.