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Finding the Fourth Proportional to 373,474.25, 515,375.21 and 203,675.57

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Solution

The fourth proportional to 373,474.25, 515,375.21 and 203,675.57 is: 281,061.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,474.25 : 515,375.21 = 203,675.57 : x
  2. Step 2: Convert to fraction form
    373,474.25/515,375.21 = 203,675.57/x
  3. Step 3: Cross multiply
    373,474.25x = 515,375.21 × 203,675.57
  4. Step 4: Simplify right side
    373,474.25x = 104,969,337,592.93
  5. Step 5: Solve for x
    x = 104,969,337,592.93/373,474.25
  6. Step 6: Final answer
    x = 281,061.78

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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.