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Finding the Fourth Proportional to 483,991.23, 667,880.43 and 269,126.69

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Solution

The fourth proportional to 483,991.23, 667,880.43 and 269,126.69 is: 371,379.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,991.23 : 667,880.43 = 269,126.69 : x
  2. Step 2: Convert to fraction form
    483,991.23/667,880.43 = 269,126.69/x
  3. Step 3: Cross multiply
    483,991.23x = 667,880.43 × 269,126.69
  4. Step 4: Simplify right side
    483,991.23x = 179,744,446,102.28
  5. Step 5: Solve for x
    x = 179,744,446,102.28/483,991.23
  6. Step 6: Final answer
    x = 371,379.55

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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.