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Finding the Fourth Proportional to 483,276.78, 724,637.37 and 199,163.48

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Solution

The fourth proportional to 483,276.78, 724,637.37 and 199,163.48 is: 298,630.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,276.78 : 724,637.37 = 199,163.48 : x
  2. Step 2: Convert to fraction form
    483,276.78/724,637.37 = 199,163.48/x
  3. Step 3: Cross multiply
    483,276.78x = 724,637.37 × 199,163.48
  4. Step 4: Simplify right side
    483,276.78x = 144,321,297,470.92
  5. Step 5: Solve for x
    x = 144,321,297,470.92/483,276.78
  6. Step 6: Final answer
    x = 298,630.73

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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.