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Finding the Fourth Proportional to 483,986.16, 667,873.47 and 269,121.61

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Solution

The fourth proportional to 483,986.16, 667,873.47 and 269,121.61 is: 371,372.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,986.16 : 667,873.47 = 269,121.61 : x
  2. Step 2: Convert to fraction form
    483,986.16/667,873.47 = 269,121.61/x
  3. Step 3: Cross multiply
    483,986.16x = 667,873.47 × 269,121.61
  4. Step 4: Simplify right side
    483,986.16x = 179,739,183,522.69
  5. Step 5: Solve for x
    x = 179,739,183,522.69/483,986.16
  6. Step 6: Final answer
    x = 371,372.57

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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.