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Finding the Fourth Proportional to 3,856,751.62, 5,782,958.79 and 1,581,649.54

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Solution

The fourth proportional to 3,856,751.62, 5,782,958.79 and 1,581,649.54 is: 2,371,584.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856,751.62 : 5,782,958.79 = 1,581,649.54 : x
  2. Step 2: Convert to fraction form
    3,856,751.62/5,782,958.79 = 1,581,649.54/x
  3. Step 3: Cross multiply
    3,856,751.62x = 5,782,958.79 × 1,581,649.54
  4. Step 4: Simplify right side
    3,856,751.62x = 9,146,614,110,042.46
  5. Step 5: Solve for x
    x = 9,146,614,110,042.46/3,856,751.62
  6. Step 6: Final answer
    x = 2,371,584.95

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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.