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Finding the Fourth Proportional to 483,990.73, 667,879.74 and 269,126.18

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Solution

The fourth proportional to 483,990.73, 667,879.74 and 269,126.18 is: 371,378.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,990.73 : 667,879.74 = 269,126.18 : x
  2. Step 2: Convert to fraction form
    483,990.73/667,879.74 = 269,126.18/x
  3. Step 3: Cross multiply
    483,990.73x = 667,879.74 × 269,126.18
  4. Step 4: Simplify right side
    483,990.73x = 179,743,923,125.59
  5. Step 5: Solve for x
    x = 179,743,923,125.59/483,990.73
  6. Step 6: Final answer
    x = 371,378.85

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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.