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Finding the Fourth Proportional to 482,731.80, 666,167.67 and 267,871.38

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Solution

The fourth proportional to 482,731.80, 666,167.67 and 267,871.38 is: 369,661.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,731.80 : 666,167.67 = 267,871.38 : x
  2. Step 2: Convert to fraction form
    482,731.80/666,167.67 = 267,871.38/x
  3. Step 3: Cross multiply
    482,731.80x = 666,167.67 × 267,871.38
  4. Step 4: Simplify right side
    482,731.80x = 178,447,253,074.29
  5. Step 5: Solve for x
    x = 178,447,253,074.29/482,731.80
  6. Step 6: Final answer
    x = 369,661.28

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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.