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Finding the Fourth Proportional to 325,648.40, 449,614.08 and 203,327.02

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Solution

The fourth proportional to 325,648.40, 449,614.08 and 203,327.02 is: 280,728.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,648.40 : 449,614.08 = 203,327.02 : x
  2. Step 2: Convert to fraction form
    325,648.40/449,614.08 = 203,327.02/x
  3. Step 3: Cross multiply
    325,648.40x = 449,614.08 × 203,327.02
  4. Step 4: Simplify right side
    325,648.40x = 91,418,691,036.44
  5. Step 5: Solve for x
    x = 91,418,691,036.44/325,648.40
  6. Step 6: Final answer
    x = 280,728.21

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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.