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Finding the Fourth Proportional to 482,397.10, 665,709.78 and 267,557.02

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Solution

The fourth proportional to 482,397.10, 665,709.78 and 267,557.02 is: 369,229.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,397.10 : 665,709.78 = 267,557.02 : x
  2. Step 2: Convert to fraction form
    482,397.10/665,709.78 = 267,557.02/x
  3. Step 3: Cross multiply
    482,397.10x = 665,709.78 × 267,557.02
  4. Step 4: Simplify right side
    482,397.10x = 178,115,324,921.66
  5. Step 5: Solve for x
    x = 178,115,324,921.66/482,397.10
  6. Step 6: Final answer
    x = 369,229.68

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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.