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Finding the Fourth Proportional to 482,326.72, 665,648.49 and 267,508.78

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Solution

The fourth proportional to 482,326.72, 665,648.49 and 267,508.78 is: 369,182.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,326.72 : 665,648.49 = 267,508.78 : x
  2. Step 2: Convert to fraction form
    482,326.72/665,648.49 = 267,508.78/x
  3. Step 3: Cross multiply
    482,326.72x = 665,648.49 × 267,508.78
  4. Step 4: Simplify right side
    482,326.72x = 178,066,815,468.74
  5. Step 5: Solve for x
    x = 178,066,815,468.74/482,326.72
  6. Step 6: Final answer
    x = 369,182.98

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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.