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Finding the Fourth Proportional to 479,247.64, 718,661.44 and 179,517.88

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Solution

The fourth proportional to 479,247.64, 718,661.44 and 179,517.88 is: 269,198.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,247.64 : 718,661.44 = 179,517.88 : x
  2. Step 2: Convert to fraction form
    479,247.64/718,661.44 = 179,517.88/x
  3. Step 3: Cross multiply
    479,247.64x = 718,661.44 × 179,517.88
  4. Step 4: Simplify right side
    479,247.64x = 129,012,578,146.55
  5. Step 5: Solve for x
    x = 129,012,578,146.55/479,247.64
  6. Step 6: Final answer
    x = 269,198.15

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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.