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Finding the Fourth Proportional to 482,772.78, 666,249.17 and 267,914.61

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Solution

The fourth proportional to 482,772.78, 666,249.17 and 267,914.61 is: 369,734.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,772.78 : 666,249.17 = 267,914.61 : x
  2. Step 2: Convert to fraction form
    482,772.78/666,249.17 = 267,914.61/x
  3. Step 3: Cross multiply
    482,772.78x = 666,249.17 × 267,914.61
  4. Step 4: Simplify right side
    482,772.78x = 178,497,885,203.80
  5. Step 5: Solve for x
    x = 178,497,885,203.80/482,772.78
  6. Step 6: Final answer
    x = 369,734.78

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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.