Home / 263,476.21-395,277.18-85,983.55

Finding the Fourth Proportional to 263,476.21, 395,277.18 and 85,983.55

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Solution

The fourth proportional to 263,476.21, 395,277.18 and 85,983.55 is: 128,995.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,476.21 : 395,277.18 = 85,983.55 : x
  2. Step 2: Convert to fraction form
    263,476.21/395,277.18 = 85,983.55/x
  3. Step 3: Cross multiply
    263,476.21x = 395,277.18 × 85,983.55
  4. Step 4: Simplify right side
    263,476.21x = 33,987,335,170.39
  5. Step 5: Solve for x
    x = 33,987,335,170.39/263,476.21
  6. Step 6: Final answer
    x = 128,995.84

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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.