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Finding the Fourth Proportional to 484,398.92, 726,782.88 and 218,098.20

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Solution

The fourth proportional to 484,398.92, 726,782.88 and 218,098.20 is: 327,230.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,398.92 : 726,782.88 = 218,098.20 : x
  2. Step 2: Convert to fraction form
    484,398.92/726,782.88 = 218,098.20/x
  3. Step 3: Cross multiply
    484,398.92x = 726,782.88 × 218,098.20
  4. Step 4: Simplify right side
    484,398.92x = 158,510,037,918.82
  5. Step 5: Solve for x
    x = 158,510,037,918.82/484,398.92
  6. Step 6: Final answer
    x = 327,230.37

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1.5x scale

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.