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Finding the Fourth Proportional to 2,481,679.20, 3,479,074.80 and 2,481,679.20

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Solution

The fourth proportional to 2,481,679.20, 3,479,074.80 and 2,481,679.20 is: 3,479,074.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481,679.20 : 3,479,074.80 = 2,481,679.20 : x
  2. Step 2: Convert to fraction form
    2,481,679.20/3,479,074.80 = 2,481,679.20/x
  3. Step 3: Cross multiply
    2,481,679.20x = 3,479,074.80 × 2,481,679.20
  4. Step 4: Simplify right side
    2,481,679.20x = 8,633,947,566,404.16
  5. Step 5: Solve for x
    x = 8,633,947,566,404.16/2,481,679.20
  6. Step 6: Final answer
    x = 3,479,074.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.