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Finding the Fourth Proportional to 4,986,305.43, 7,479,682.18 and 1,527,791.74

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Solution

The fourth proportional to 4,986,305.43, 7,479,682.18 and 1,527,791.74 is: 2,291,756.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986,305.43 : 7,479,682.18 = 1,527,791.74 : x
  2. Step 2: Convert to fraction form
    4,986,305.43/7,479,682.18 = 1,527,791.74/x
  3. Step 3: Cross multiply
    4,986,305.43x = 7,479,682.18 × 1,527,791.74
  4. Step 4: Simplify right side
    4,986,305.43x = 11,427,396,644,726.10
  5. Step 5: Solve for x
    x = 11,427,396,644,726.10/4,986,305.43
  6. Step 6: Final answer
    x = 2,291,756.25

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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.