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Finding the Fourth Proportional to 454,270.71, 680,763.45 and 251,956.47

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Solution

The fourth proportional to 454,270.71, 680,763.45 and 251,956.47 is: 377,578.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,270.71 : 680,763.45 = 251,956.47 : x
  2. Step 2: Convert to fraction form
    454,270.71/680,763.45 = 251,956.47/x
  3. Step 3: Cross multiply
    454,270.71x = 680,763.45 × 251,956.47
  4. Step 4: Simplify right side
    454,270.71x = 171,522,755,767.02
  5. Step 5: Solve for x
    x = 171,522,755,767.02/454,270.71
  6. Step 6: Final answer
    x = 377,578.29

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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.