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Finding the Fourth Proportional to 479,067.20, 718,600.80 and 226,264.58

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Solution

The fourth proportional to 479,067.20, 718,600.80 and 226,264.58 is: 339,396.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,067.20 : 718,600.80 = 226,264.58 : x
  2. Step 2: Convert to fraction form
    479,067.20/718,600.80 = 226,264.58/x
  3. Step 3: Cross multiply
    479,067.20x = 718,600.80 × 226,264.58
  4. Step 4: Simplify right side
    479,067.20x = 162,593,908,199.66
  5. Step 5: Solve for x
    x = 162,593,908,199.66/479,067.20
  6. Step 6: Final answer
    x = 339,396.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.