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Finding the Fourth Proportional to 484,319.17, 726,471.46 and 217,891.54

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Solution

The fourth proportional to 484,319.17, 726,471.46 and 217,891.54 is: 326,834.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,319.17 : 726,471.46 = 217,891.54 : x
  2. Step 2: Convert to fraction form
    484,319.17/726,471.46 = 217,891.54/x
  3. Step 3: Cross multiply
    484,319.17x = 726,471.46 × 217,891.54
  4. Step 4: Simplify right side
    484,319.17x = 158,291,985,185.45
  5. Step 5: Solve for x
    x = 158,291,985,185.45/484,319.17
  6. Step 6: Final answer
    x = 326,834.03

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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.