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Finding the Fourth Proportional to 4,522,387.76, 6,784,630.20 and 1,489,644.56

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Solution

The fourth proportional to 4,522,387.76, 6,784,630.20 and 1,489,644.56 is: 2,234,812.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,522,387.76 : 6,784,630.20 = 1,489,644.56 : x
  2. Step 2: Convert to fraction form
    4,522,387.76/6,784,630.20 = 1,489,644.56/x
  3. Step 3: Cross multiply
    4,522,387.76x = 6,784,630.20 × 1,489,644.56
  4. Step 4: Simplify right side
    4,522,387.76x = 10,106,687,469,041.71
  5. Step 5: Solve for x
    x = 10,106,687,469,041.71/4,522,387.76
  6. Step 6: Final answer
    x = 2,234,812.23

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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.