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Finding the Fourth Proportional to 483,391.68, 667,260.16 and 415,134.56

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Solution

The fourth proportional to 483,391.68, 667,260.16 and 415,134.56 is: 573,039.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,391.68 : 667,260.16 = 415,134.56 : x
  2. Step 2: Convert to fraction form
    483,391.68/667,260.16 = 415,134.56/x
  3. Step 3: Cross multiply
    483,391.68x = 667,260.16 × 415,134.56
  4. Step 4: Simplify right side
    483,391.68x = 277,002,752,927.13
  5. Step 5: Solve for x
    x = 277,002,752,927.13/483,391.68
  6. Step 6: Final answer
    x = 573,039.97

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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.