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Finding the Fourth Proportional to 484,339.67, 726,502.20 and 217,912.04

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Solution

The fourth proportional to 484,339.67, 726,502.20 and 217,912.04 is: 326,864.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,339.67 : 726,502.20 = 217,912.04 : x
  2. Step 2: Convert to fraction form
    484,339.67/726,502.20 = 217,912.04/x
  3. Step 3: Cross multiply
    484,339.67x = 726,502.20 × 217,912.04
  4. Step 4: Simplify right side
    484,339.67x = 158,313,576,466.49
  5. Step 5: Solve for x
    x = 158,313,576,466.49/484,339.67
  6. Step 6: Final answer
    x = 326,864.77

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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.