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Finding the Fourth Proportional to 5,217,349.20, 7,822,524.60 and 2,375,998.80

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Solution

The fourth proportional to 5,217,349.20, 7,822,524.60 and 2,375,998.80 is: 3,562,404.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217,349.20 : 7,822,524.60 = 2,375,998.80 : x
  2. Step 2: Convert to fraction form
    5,217,349.20/7,822,524.60 = 2,375,998.80/x
  3. Step 3: Cross multiply
    5,217,349.20x = 7,822,524.60 × 2,375,998.80
  4. Step 4: Simplify right side
    5,217,349.20x = 18,586,309,062,570.48
  5. Step 5: Solve for x
    x = 18,586,309,062,570.48/5,217,349.20
  6. Step 6: Final answer
    x = 3,562,404.65

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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.