Home / 262,861.20-394,032.60-129,632.40

Finding the Fourth Proportional to 262,861.20, 394,032.60 and 129,632.40

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Solution

The fourth proportional to 262,861.20, 394,032.60 and 129,632.40 is: 194,320.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,861.20 : 394,032.60 = 129,632.40 : x
  2. Step 2: Convert to fraction form
    262,861.20/394,032.60 = 129,632.40/x
  3. Step 3: Cross multiply
    262,861.20x = 394,032.60 × 129,632.40
  4. Step 4: Simplify right side
    262,861.20x = 51,079,391,616.24
  5. Step 5: Solve for x
    x = 51,079,391,616.24/262,861.20
  6. Step 6: Final answer
    x = 194,320.77

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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.