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Finding the Fourth Proportional to 550,679.20, 825,824.40 and 195,704.80

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Solution

The fourth proportional to 550,679.20, 825,824.40 and 195,704.80 is: 293,488.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,679.20 : 825,824.40 = 195,704.80 : x
  2. Step 2: Convert to fraction form
    550,679.20/825,824.40 = 195,704.80/x
  3. Step 3: Cross multiply
    550,679.20x = 825,824.40 × 195,704.80
  4. Step 4: Simplify right side
    550,679.20x = 161,617,799,037.12
  5. Step 5: Solve for x
    x = 161,617,799,037.12/550,679.20
  6. Step 6: Final answer
    x = 293,488.11

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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.