Home / 263,028.43-394,589.12-85,504.17

Finding the Fourth Proportional to 263,028.43, 394,589.12 and 85,504.17

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Solution

The fourth proportional to 263,028.43, 394,589.12 and 85,504.17 is: 128,271.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,028.43 : 394,589.12 = 85,504.17 : x
  2. Step 2: Convert to fraction form
    263,028.43/394,589.12 = 85,504.17/x
  3. Step 3: Cross multiply
    263,028.43x = 394,589.12 × 85,504.17
  4. Step 4: Simplify right side
    263,028.43x = 33,739,015,196.63
  5. Step 5: Solve for x
    x = 33,739,015,196.63/263,028.43
  6. Step 6: Final answer
    x = 128,271.36

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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.