Home / 263,480.85-395,259.62-85,944.15

Finding the Fourth Proportional to 263,480.85, 395,259.62 and 85,944.15

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Solution

The fourth proportional to 263,480.85, 395,259.62 and 85,944.15 is: 128,928.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,480.85 : 395,259.62 = 85,944.15 : x
  2. Step 2: Convert to fraction form
    263,480.85/395,259.62 = 85,944.15/x
  3. Step 3: Cross multiply
    263,480.85x = 395,259.62 × 85,944.15
  4. Step 4: Simplify right side
    263,480.85x = 33,970,251,640.50
  5. Step 5: Solve for x
    x = 33,970,251,640.50/263,480.85
  6. Step 6: Final answer
    x = 128,928.73

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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.