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Finding the Fourth Proportional to 451,716.92, 676,391.70 and 317,872.52

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Solution

The fourth proportional to 451,716.92, 676,391.70 and 317,872.52 is: 475,975.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,716.92 : 676,391.70 = 317,872.52 : x
  2. Step 2: Convert to fraction form
    451,716.92/676,391.70 = 317,872.52/x
  3. Step 3: Cross multiply
    451,716.92x = 676,391.70 × 317,872.52
  4. Step 4: Simplify right side
    451,716.92x = 215,006,334,186.08
  5. Step 5: Solve for x
    x = 215,006,334,186.08/451,716.92
  6. Step 6: Final answer
    x = 475,975.83

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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.