Home / 263,210.20-394,842.96-85,731.04

Finding the Fourth Proportional to 263,210.20, 394,842.96 and 85,731.04

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Solution

The fourth proportional to 263,210.20, 394,842.96 and 85,731.04 is: 128,605.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,210.20 : 394,842.96 = 85,731.04 : x
  2. Step 2: Convert to fraction form
    263,210.20/394,842.96 = 85,731.04/x
  3. Step 3: Cross multiply
    263,210.20x = 394,842.96 × 85,731.04
  4. Step 4: Simplify right side
    263,210.20x = 33,850,297,597.48
  5. Step 5: Solve for x
    x = 33,850,297,597.48/263,210.20
  6. Step 6: Final answer
    x = 128,605.57

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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.