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Finding the Fourth Proportional to 449,062.92, 619,691.40 and 267,681.38

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Solution

The fourth proportional to 449,062.92, 619,691.40 and 267,681.38 is: 369,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,062.92 : 619,691.40 = 267,681.38 : x
  2. Step 2: Convert to fraction form
    449,062.92/619,691.40 = 267,681.38/x
  3. Step 3: Cross multiply
    449,062.92x = 619,691.40 × 267,681.38
  4. Step 4: Simplify right side
    449,062.92x = 165,879,846,027.68
  5. Step 5: Solve for x
    x = 165,879,846,027.68/449,062.92
  6. Step 6: Final answer
    x = 369,391.10

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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.