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Finding the Fourth Proportional to 482,345.28, 665,658 and 267,470.91

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Solution

The fourth proportional to 482,345.28, 665,658 and 267,470.91 is: 369,121.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,345.28 : 665,658 = 267,470.91 : x
  2. Step 2: Convert to fraction form
    482,345.28/665,658 = 267,470.91/x
  3. Step 3: Cross multiply
    482,345.28x = 665,658 × 267,470.91
  4. Step 4: Simplify right side
    482,345.28x = 178,044,151,008.78
  5. Step 5: Solve for x
    x = 178,044,151,008.78/482,345.28
  6. Step 6: Final answer
    x = 369,121.79

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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.