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Finding the Fourth Proportional to 7,984,452.80, 11,978,234.40 and 2,304,862.40

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Solution

The fourth proportional to 7,984,452.80, 11,978,234.40 and 2,304,862.40 is: 3,457,742.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984,452.80 : 11,978,234.40 = 2,304,862.40 : x
  2. Step 2: Convert to fraction form
    7,984,452.80/11,978,234.40 = 2,304,862.40/x
  3. Step 3: Cross multiply
    7,984,452.80x = 11,978,234.40 × 2,304,862.40
  4. Step 4: Simplify right side
    7,984,452.80x = 27,608,182,086,946.56
  5. Step 5: Solve for x
    x = 27,608,182,086,946.56/7,984,452.80
  6. Step 6: Final answer
    x = 3,457,742.54

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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.