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Finding the Fourth Proportional to 471,227.88, 706,981.14 and 271,691.40

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Solution

The fourth proportional to 471,227.88, 706,981.14 and 271,691.40 is: 407,617.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,227.88 : 706,981.14 = 271,691.40 : x
  2. Step 2: Convert to fraction form
    471,227.88/706,981.14 = 271,691.40/x
  3. Step 3: Cross multiply
    471,227.88x = 706,981.14 × 271,691.40
  4. Step 4: Simplify right side
    471,227.88x = 192,080,695,700.20
  5. Step 5: Solve for x
    x = 192,080,695,700.20/471,227.88
  6. Step 6: Final answer
    x = 407,617.43

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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.