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Finding the Fourth Proportional to 486,182.20, 729,390.66 and 182,578.84

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Solution

The fourth proportional to 486,182.20, 729,390.66 and 182,578.84 is: 273,912.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,182.20 : 729,390.66 = 182,578.84 : x
  2. Step 2: Convert to fraction form
    486,182.20/729,390.66 = 182,578.84/x
  3. Step 3: Cross multiply
    486,182.20x = 729,390.66 × 182,578.84
  4. Step 4: Simplify right side
    486,182.20x = 133,171,300,609.63
  5. Step 5: Solve for x
    x = 133,171,300,609.63/486,182.20
  6. Step 6: Final answer
    x = 273,912.33

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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.