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Finding the Fourth Proportional to 3,979,873.32, 5,972,124.24 and 1,674,197.43

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Solution

The fourth proportional to 3,979,873.32, 5,972,124.24 and 1,674,197.43 is: 2,512,269.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979,873.32 : 5,972,124.24 = 1,674,197.43 : x
  2. Step 2: Convert to fraction form
    3,979,873.32/5,972,124.24 = 1,674,197.43/x
  3. Step 3: Cross multiply
    3,979,873.32x = 5,972,124.24 × 1,674,197.43
  4. Step 4: Simplify right side
    3,979,873.32x = 9,998,515,054,248.70
  5. Step 5: Solve for x
    x = 9,998,515,054,248.70/3,979,873.32
  6. Step 6: Final answer
    x = 2,512,269.68

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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.