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Finding the Fourth Proportional to 412,134.90, 568,940.97 and 276,257.62

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Solution

The fourth proportional to 412,134.90, 568,940.97 and 276,257.62 is: 381,366.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,134.90 : 568,940.97 = 276,257.62 : x
  2. Step 2: Convert to fraction form
    412,134.90/568,940.97 = 276,257.62/x
  3. Step 3: Cross multiply
    412,134.90x = 568,940.97 × 276,257.62
  4. Step 4: Simplify right side
    412,134.90x = 157,174,278,485.89
  5. Step 5: Solve for x
    x = 157,174,278,485.89/412,134.90
  6. Step 6: Final answer
    x = 381,366.10

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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.