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Finding the Fourth Proportional to 629,825.80, 944,745.90 and 156,512.20

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Solution

The fourth proportional to 629,825.80, 944,745.90 and 156,512.20 is: 234,770.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,825.80 : 944,745.90 = 156,512.20 : x
  2. Step 2: Convert to fraction form
    629,825.80/944,745.90 = 156,512.20/x
  3. Step 3: Cross multiply
    629,825.80x = 944,745.90 × 156,512.20
  4. Step 4: Simplify right side
    629,825.80x = 147,864,259,249.98
  5. Step 5: Solve for x
    x = 147,864,259,249.98/629,825.80
  6. Step 6: Final answer
    x = 234,770.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.