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Finding the Fourth Proportional to 484,331.70, 726,490.20 and 217,904.04

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Solution

The fourth proportional to 484,331.70, 726,490.20 and 217,904.04 is: 326,852.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,331.70 : 726,490.20 = 217,904.04 : x
  2. Step 2: Convert to fraction form
    484,331.70/726,490.20 = 217,904.04/x
  3. Step 3: Cross multiply
    484,331.70x = 726,490.20 × 217,904.04
  4. Step 4: Simplify right side
    484,331.70x = 158,305,149,600.41
  5. Step 5: Solve for x
    x = 158,305,149,600.41/484,331.70
  6. Step 6: Final answer
    x = 326,852.75

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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.