Home / 262,847.20-394,011.60-129,618.40

Finding the Fourth Proportional to 262,847.20, 394,011.60 and 129,618.40

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Solution

The fourth proportional to 262,847.20, 394,011.60 and 129,618.40 is: 194,299.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,847.20 : 394,011.60 = 129,618.40 : x
  2. Step 2: Convert to fraction form
    262,847.20/394,011.60 = 129,618.40/x
  3. Step 3: Cross multiply
    262,847.20x = 394,011.60 × 129,618.40
  4. Step 4: Simplify right side
    262,847.20x = 51,071,153,173.44
  5. Step 5: Solve for x
    x = 51,071,153,173.44/262,847.20
  6. Step 6: Final answer
    x = 194,299.78

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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.