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Finding the Fourth Proportional to 574,792.30, 861,523.21 and 271,378.86

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Solution

The fourth proportional to 574,792.30, 861,523.21 and 271,378.86 is: 406,754.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,792.30 : 861,523.21 = 271,378.86 : x
  2. Step 2: Convert to fraction form
    574,792.30/861,523.21 = 271,378.86/x
  3. Step 3: Cross multiply
    574,792.30x = 861,523.21 × 271,378.86
  4. Step 4: Simplify right side
    574,792.30x = 233,799,186,593.34
  5. Step 5: Solve for x
    x = 233,799,186,593.34/574,792.30
  6. Step 6: Final answer
    x = 406,754.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.