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Finding the Fourth Proportional to 3,981,129.33, 5,970,709.84 and 1,706,395.77

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Solution

The fourth proportional to 3,981,129.33, 5,970,709.84 and 1,706,395.77 is: 2,559,171.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981,129.33 : 5,970,709.84 = 1,706,395.77 : x
  2. Step 2: Convert to fraction form
    3,981,129.33/5,970,709.84 = 1,706,395.77/x
  3. Step 3: Cross multiply
    3,981,129.33x = 5,970,709.84 × 1,706,395.77
  4. Step 4: Simplify right side
    3,981,129.33x = 10,188,394,014,873.38
  5. Step 5: Solve for x
    x = 10,188,394,014,873.38/3,981,129.33
  6. Step 6: Final answer
    x = 2,559,171.83

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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.