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Finding the Fourth Proportional to 451,731.29, 676,693.46 and 271,717.29

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Solution

The fourth proportional to 451,731.29, 676,693.46 and 271,717.29 is: 407,032.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,731.29 : 676,693.46 = 271,717.29 : x
  2. Step 2: Convert to fraction form
    451,731.29/676,693.46 = 271,717.29/x
  3. Step 3: Cross multiply
    451,731.29x = 676,693.46 × 271,717.29
  4. Step 4: Simplify right side
    451,731.29x = 183,869,313,791.22
  5. Step 5: Solve for x
    x = 183,869,313,791.22/451,731.29
  6. Step 6: Final answer
    x = 407,032.50

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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.