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Finding the Fourth Proportional to 325,812.01, 449,620.56 and 198,487.51

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Solution

The fourth proportional to 325,812.01, 449,620.56 and 198,487.51 is: 273,912.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,812.01 : 449,620.56 = 198,487.51 : x
  2. Step 2: Convert to fraction form
    325,812.01/449,620.56 = 198,487.51/x
  3. Step 3: Cross multiply
    325,812.01x = 449,620.56 × 198,487.51
  4. Step 4: Simplify right side
    325,812.01x = 89,244,065,399.21
  5. Step 5: Solve for x
    x = 89,244,065,399.21/325,812.01
  6. Step 6: Final answer
    x = 273,912.76

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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.