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Finding the Fourth Proportional to 483,540.80, 667,115.76 and 276,658.07

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Solution

The fourth proportional to 483,540.80, 667,115.76 and 276,658.07 is: 381,690.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,540.80 : 667,115.76 = 276,658.07 : x
  2. Step 2: Convert to fraction form
    483,540.80/667,115.76 = 276,658.07/x
  3. Step 3: Cross multiply
    483,540.80x = 667,115.76 × 276,658.07
  4. Step 4: Simplify right side
    483,540.80x = 184,562,958,628.18
  5. Step 5: Solve for x
    x = 184,562,958,628.18/483,540.80
  6. Step 6: Final answer
    x = 381,690.56

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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.