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Finding the Fourth Proportional to 366,724.40, 550,961.40 and 328,233.20

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Solution

The fourth proportional to 366,724.40, 550,961.40 and 328,233.20 is: 493,132.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,724.40 : 550,961.40 = 328,233.20 : x
  2. Step 2: Convert to fraction form
    366,724.40/550,961.40 = 328,233.20/x
  3. Step 3: Cross multiply
    366,724.40x = 550,961.40 × 328,233.20
  4. Step 4: Simplify right side
    366,724.40x = 180,843,823,398.48
  5. Step 5: Solve for x
    x = 180,843,823,398.48/366,724.40
  6. Step 6: Final answer
    x = 493,132.78

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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.