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Finding the Fourth Proportional to 3,956,391.86, 5,933,757.39 and 1,115,839.71

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Solution

The fourth proportional to 3,956,391.86, 5,933,757.39 and 1,115,839.71 is: 1,673,525.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956,391.86 : 5,933,757.39 = 1,115,839.71 : x
  2. Step 2: Convert to fraction form
    3,956,391.86/5,933,757.39 = 1,115,839.71/x
  3. Step 3: Cross multiply
    3,956,391.86x = 5,933,757.39 × 1,115,839.71
  4. Step 4: Simplify right side
    3,956,391.86x = 6,621,122,125,267.96
  5. Step 5: Solve for x
    x = 6,621,122,125,267.96/3,956,391.86
  6. Step 6: Final answer
    x = 1,673,525.37

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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.