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Finding the Fourth Proportional to 483,630.40, 725,791.20 and 203,348.80

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Solution

The fourth proportional to 483,630.40, 725,791.20 and 203,348.80 is: 305,168.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,630.40 : 725,791.20 = 203,348.80 : x
  2. Step 2: Convert to fraction form
    483,630.40/725,791.20 = 203,348.80/x
  3. Step 3: Cross multiply
    483,630.40x = 725,791.20 × 203,348.80
  4. Step 4: Simplify right side
    483,630.40x = 147,588,769,570.56
  5. Step 5: Solve for x
    x = 147,588,769,570.56/483,630.40
  6. Step 6: Final answer
    x = 305,168.51

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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.