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Finding the Fourth Proportional to 482,131.96, 665,297.28 and 267,253.72

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Solution

The fourth proportional to 482,131.96, 665,297.28 and 267,253.72 is: 368,785.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,131.96 : 665,297.28 = 267,253.72 : x
  2. Step 2: Convert to fraction form
    482,131.96/665,297.28 = 267,253.72/x
  3. Step 3: Cross multiply
    482,131.96x = 665,297.28 × 267,253.72
  4. Step 4: Simplify right side
    482,131.96x = 177,803,172,985.88
  5. Step 5: Solve for x
    x = 177,803,172,985.88/482,131.96
  6. Step 6: Final answer
    x = 368,785.29

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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.