Home / 263,012.20-394,518.30-96,778.60

Finding the Fourth Proportional to 263,012.20, 394,518.30 and 96,778.60

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Solution

The fourth proportional to 263,012.20, 394,518.30 and 96,778.60 is: 145,167.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,012.20 : 394,518.30 = 96,778.60 : x
  2. Step 2: Convert to fraction form
    263,012.20/394,518.30 = 96,778.60/x
  3. Step 3: Cross multiply
    263,012.20x = 394,518.30 × 96,778.60
  4. Step 4: Simplify right side
    263,012.20x = 38,180,928,748.38
  5. Step 5: Solve for x
    x = 38,180,928,748.38/263,012.20
  6. Step 6: Final answer
    x = 145,167.90

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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.