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Finding the Fourth Proportional to 322,308.80, 483,463.20 and 247,572.80

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Solution

The fourth proportional to 322,308.80, 483,463.20 and 247,572.80 is: 371,359.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,308.80 : 483,463.20 = 247,572.80 : x
  2. Step 2: Convert to fraction form
    322,308.80/483,463.20 = 247,572.80/x
  3. Step 3: Cross multiply
    322,308.80x = 483,463.20 × 247,572.80
  4. Step 4: Simplify right side
    322,308.80x = 119,692,338,120.96
  5. Step 5: Solve for x
    x = 119,692,338,120.96/322,308.80
  6. Step 6: Final answer
    x = 371,359.20

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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.