Home / 263,819.25-395,739.81-76,830.75

Finding the Fourth Proportional to 263,819.25, 395,739.81 and 76,830.75

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Solution

The fourth proportional to 263,819.25, 395,739.81 and 76,830.75 is: 115,249.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,819.25 : 395,739.81 = 76,830.75 : x
  2. Step 2: Convert to fraction form
    263,819.25/395,739.81 = 76,830.75/x
  3. Step 3: Cross multiply
    263,819.25x = 395,739.81 × 76,830.75
  4. Step 4: Simplify right side
    263,819.25x = 30,404,986,407.16
  5. Step 5: Solve for x
    x = 30,404,986,407.16/263,819.25
  6. Step 6: Final answer
    x = 115,249.31

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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.