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Finding the Fourth Proportional to 484,300.80, 726,105.60 and 217,843.20

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Solution

The fourth proportional to 484,300.80, 726,105.60 and 217,843.20 is: 326,609.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,300.80 : 726,105.60 = 217,843.20 : x
  2. Step 2: Convert to fraction form
    484,300.80/726,105.60 = 217,843.20/x
  3. Step 3: Cross multiply
    484,300.80x = 726,105.60 × 217,843.20
  4. Step 4: Simplify right side
    484,300.80x = 158,177,167,441.92
  5. Step 5: Solve for x
    x = 158,177,167,441.92/484,300.80
  6. Step 6: Final answer
    x = 326,609.35

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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.