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Finding the Fourth Proportional to 483,991.46, 667,880.80 and 269,126.92

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Solution

The fourth proportional to 483,991.46, 667,880.80 and 269,126.92 is: 371,379.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,991.46 : 667,880.80 = 269,126.92 : x
  2. Step 2: Convert to fraction form
    483,991.46/667,880.80 = 269,126.92/x
  3. Step 3: Cross multiply
    483,991.46x = 667,880.80 × 269,126.92
  4. Step 4: Simplify right side
    483,991.46x = 179,744,700,288.62
  5. Step 5: Solve for x
    x = 179,744,700,288.62/483,991.46
  6. Step 6: Final answer
    x = 371,379.90

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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.