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Finding the Fourth Proportional to 482,519.80, 723,429.78 and 324,355.96

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Solution

The fourth proportional to 482,519.80, 723,429.78 and 324,355.96 is: 486,298.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,519.80 : 723,429.78 = 324,355.96 : x
  2. Step 2: Convert to fraction form
    482,519.80/723,429.78 = 324,355.96/x
  3. Step 3: Cross multiply
    482,519.80x = 723,429.78 × 324,355.96
  4. Step 4: Simplify right side
    482,519.80x = 234,648,760,784.49
  5. Step 5: Solve for x
    x = 234,648,760,784.49/482,519.80
  6. Step 6: Final answer
    x = 486,298.72

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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.