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Finding the Fourth Proportional to 283,385.05, 424,093.43 and 194,811.55

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Solution

The fourth proportional to 283,385.05, 424,093.43 and 194,811.55 is: 291,540.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,385.05 : 424,093.43 = 194,811.55 : x
  2. Step 2: Convert to fraction form
    283,385.05/424,093.43 = 194,811.55/x
  3. Step 3: Cross multiply
    283,385.05x = 424,093.43 × 194,811.55
  4. Step 4: Simplify right side
    283,385.05x = 82,618,297,469.06
  5. Step 5: Solve for x
    x = 82,618,297,469.06/283,385.05
  6. Step 6: Final answer
    x = 291,540.78

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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.