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Finding the Fourth Proportional to 3,942,406.55, 5,913,609.83 and 3,942,406.55

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Solution

The fourth proportional to 3,942,406.55, 5,913,609.83 and 3,942,406.55 is: 5,913,609.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942,406.55 : 5,913,609.83 = 3,942,406.55 : x
  2. Step 2: Convert to fraction form
    3,942,406.55/5,913,609.83 = 3,942,406.55/x
  3. Step 3: Cross multiply
    3,942,406.55x = 5,913,609.83 × 3,942,406.55
  4. Step 4: Simplify right side
    3,942,406.55x = 23,313,854,108,224.35
  5. Step 5: Solve for x
    x = 23,313,854,108,224.35/3,942,406.55
  6. Step 6: Final answer
    x = 5,913,609.83

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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.