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Finding the Fourth Proportional to 484,165.60, 726,248.40 and 325,535.20

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Solution

The fourth proportional to 484,165.60, 726,248.40 and 325,535.20 is: 488,302.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,165.60 : 726,248.40 = 325,535.20 : x
  2. Step 2: Convert to fraction form
    484,165.60/726,248.40 = 325,535.20/x
  3. Step 3: Cross multiply
    484,165.60x = 726,248.40 × 325,535.20
  4. Step 4: Simplify right side
    484,165.60x = 236,419,418,143.68
  5. Step 5: Solve for x
    x = 236,419,418,143.68/484,165.60
  6. Step 6: Final answer
    x = 488,302.80

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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.