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Finding the Fourth Proportional to 461,167.60, 636,314.52 and 279,974.92

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Solution

The fourth proportional to 461,167.60, 636,314.52 and 279,974.92 is: 386,306.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,167.60 : 636,314.52 = 279,974.92 : x
  2. Step 2: Convert to fraction form
    461,167.60/636,314.52 = 279,974.92/x
  3. Step 3: Cross multiply
    461,167.60x = 636,314.52 × 279,974.92
  4. Step 4: Simplify right side
    461,167.60x = 178,152,106,831.84
  5. Step 5: Solve for x
    x = 178,152,106,831.84/461,167.60
  6. Step 6: Final answer
    x = 386,306.64

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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.