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Finding the Fourth Proportional to 322,906.20, 484,359.30 and 252,845.40

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Solution

The fourth proportional to 322,906.20, 484,359.30 and 252,845.40 is: 379,268.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,906.20 : 484,359.30 = 252,845.40 : x
  2. Step 2: Convert to fraction form
    322,906.20/484,359.30 = 252,845.40/x
  3. Step 3: Cross multiply
    322,906.20x = 484,359.30 × 252,845.40
  4. Step 4: Simplify right side
    322,906.20x = 122,468,020,952.22
  5. Step 5: Solve for x
    x = 122,468,020,952.22/322,906.20
  6. Step 6: Final answer
    x = 379,268.10

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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.