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Finding the Fourth Proportional to 325,652.90, 449,620.32 and 203,331.56

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Solution

The fourth proportional to 325,652.90, 449,620.32 and 203,331.56 is: 280,734.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,652.90 : 449,620.32 = 203,331.56 : x
  2. Step 2: Convert to fraction form
    325,652.90/449,620.32 = 203,331.56/x
  3. Step 3: Cross multiply
    325,652.90x = 449,620.32 × 203,331.56
  4. Step 4: Simplify right side
    325,652.90x = 91,422,001,073.30
  5. Step 5: Solve for x
    x = 91,422,001,073.30/325,652.90
  6. Step 6: Final answer
    x = 280,734.49

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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.