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Finding the Fourth Proportional to 484,335.67, 726,496.20 and 217,908.04

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Solution

The fourth proportional to 484,335.67, 726,496.20 and 217,908.04 is: 326,858.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,335.67 : 726,496.20 = 217,908.04 : x
  2. Step 2: Convert to fraction form
    484,335.67/726,496.20 = 217,908.04/x
  3. Step 3: Cross multiply
    484,335.67x = 726,496.20 × 217,908.04
  4. Step 4: Simplify right side
    484,335.67x = 158,309,363,009.45
  5. Step 5: Solve for x
    x = 158,309,363,009.45/484,335.67
  6. Step 6: Final answer
    x = 326,858.77

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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.