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Finding the Fourth Proportional to 484,330.17, 726,487.95 and 217,902.54

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Solution

The fourth proportional to 484,330.17, 726,487.95 and 217,902.54 is: 326,850.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,330.17 : 726,487.95 = 217,902.54 : x
  2. Step 2: Convert to fraction form
    484,330.17/726,487.95 = 217,902.54/x
  3. Step 3: Cross multiply
    484,330.17x = 726,487.95 × 217,902.54
  4. Step 4: Simplify right side
    484,330.17x = 158,303,569,584.39
  5. Step 5: Solve for x
    x = 158,303,569,584.39/484,330.17
  6. Step 6: Final answer
    x = 326,850.52

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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.