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Finding the Fourth Proportional to 482,449.84, 665,781.21 and 267,589.90

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Solution

The fourth proportional to 482,449.84, 665,781.21 and 267,589.90 is: 369,274.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,449.84 : 665,781.21 = 267,589.90 : x
  2. Step 2: Convert to fraction form
    482,449.84/665,781.21 = 267,589.90/x
  3. Step 3: Cross multiply
    482,449.84x = 665,781.21 × 267,589.90
  4. Step 4: Simplify right side
    482,449.84x = 178,156,327,405.78
  5. Step 5: Solve for x
    x = 178,156,327,405.78/482,449.84
  6. Step 6: Final answer
    x = 369,274.30

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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.