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Finding the Fourth Proportional to 484,321.68, 726,475.22 and 217,894.04

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Solution

The fourth proportional to 484,321.68, 726,475.22 and 217,894.04 is: 326,837.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,321.68 : 726,475.22 = 217,894.04 : x
  2. Step 2: Convert to fraction form
    484,321.68/726,475.22 = 217,894.04/x
  3. Step 3: Cross multiply
    484,321.68x = 726,475.22 × 217,894.04
  4. Step 4: Simplify right side
    484,321.68x = 158,294,620,645.69
  5. Step 5: Solve for x
    x = 158,294,620,645.69/484,321.68
  6. Step 6: Final answer
    x = 326,837.78

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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.