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Finding the Fourth Proportional to 325,812.02, 449,620.55 and 198,487.52

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Solution

The fourth proportional to 325,812.02, 449,620.55 and 198,487.52 is: 273,912.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,812.02 : 449,620.55 = 198,487.52 : x
  2. Step 2: Convert to fraction form
    325,812.02/449,620.55 = 198,487.52/x
  3. Step 3: Cross multiply
    325,812.02x = 449,620.55 × 198,487.52
  4. Step 4: Simplify right side
    325,812.02x = 89,244,067,910.54
  5. Step 5: Solve for x
    x = 89,244,067,910.54/325,812.02
  6. Step 6: Final answer
    x = 273,912.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.