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Finding the Fourth Proportional to 419,612.92, 629,414.52 and 251,180.32

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Solution

The fourth proportional to 419,612.92, 629,414.52 and 251,180.32 is: 376,767.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,612.92 : 629,414.52 = 251,180.32 : x
  2. Step 2: Convert to fraction form
    419,612.92/629,414.52 = 251,180.32/x
  3. Step 3: Cross multiply
    419,612.92x = 629,414.52 × 251,180.32
  4. Step 4: Simplify right side
    419,612.92x = 158,096,540,546.25
  5. Step 5: Solve for x
    x = 158,096,540,546.25/419,612.92
  6. Step 6: Final answer
    x = 376,767.57

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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.