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Finding the Fourth Proportional to 451,711.17, 676,383.08 and 317,866.77

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Solution

The fourth proportional to 451,711.17, 676,383.08 and 317,866.77 is: 475,967.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,711.17 : 676,383.08 = 317,866.77 : x
  2. Step 2: Convert to fraction form
    451,711.17/676,383.08 = 317,866.77/x
  3. Step 3: Cross multiply
    451,711.17x = 676,383.08 × 317,866.77
  4. Step 4: Simplify right side
    451,711.17x = 214,999,703,332.92
  5. Step 5: Solve for x
    x = 214,999,703,332.92/451,711.17
  6. Step 6: Final answer
    x = 475,967.21

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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.