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Finding the Fourth Proportional to 483,776.80, 667,634.70 and 268,920.46

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Solution

The fourth proportional to 483,776.80, 667,634.70 and 268,920.46 is: 371,122.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,776.80 : 667,634.70 = 268,920.46 : x
  2. Step 2: Convert to fraction form
    483,776.80/667,634.70 = 268,920.46/x
  3. Step 3: Cross multiply
    483,776.80x = 667,634.70 × 268,920.46
  4. Step 4: Simplify right side
    483,776.80x = 179,540,630,635.96
  5. Step 5: Solve for x
    x = 179,540,630,635.96/483,776.80
  6. Step 6: Final answer
    x = 371,122.86

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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.