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Finding the Fourth Proportional to 5,776,757.59, 7,972,174.53 and 3,198,438.31

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Solution

The fourth proportional to 5,776,757.59, 7,972,174.53 and 3,198,438.31 is: 4,413,982.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,776,757.59 : 7,972,174.53 = 3,198,438.31 : x
  2. Step 2: Convert to fraction form
    5,776,757.59/7,972,174.53 = 3,198,438.31/x
  3. Step 3: Cross multiply
    5,776,757.59x = 7,972,174.53 × 3,198,438.31
  4. Step 4: Simplify right side
    5,776,757.59x = 25,498,508,390,897.38
  5. Step 5: Solve for x
    x = 25,498,508,390,897.38/5,776,757.59
  6. Step 6: Final answer
    x = 4,413,982.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.