Home / 263,278.92-394,843.02-85,801.44

Finding the Fourth Proportional to 263,278.92, 394,843.02 and 85,801.44

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Solution

The fourth proportional to 263,278.92, 394,843.02 and 85,801.44 is: 128,677.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,278.92 : 394,843.02 = 85,801.44 : x
  2. Step 2: Convert to fraction form
    263,278.92/394,843.02 = 85,801.44/x
  3. Step 3: Cross multiply
    263,278.92x = 394,843.02 × 85,801.44
  4. Step 4: Simplify right side
    263,278.92x = 33,878,099,689.95
  5. Step 5: Solve for x
    x = 33,878,099,689.95/263,278.92
  6. Step 6: Final answer
    x = 128,677.60

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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.