Home / 263,323.20-394,790.40-113,440.80

Finding the Fourth Proportional to 263,323.20, 394,790.40 and 113,440.80

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Solution

The fourth proportional to 263,323.20, 394,790.40 and 113,440.80 is: 170,077.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,323.20 : 394,790.40 = 113,440.80 : x
  2. Step 2: Convert to fraction form
    263,323.20/394,790.40 = 113,440.80/x
  3. Step 3: Cross multiply
    263,323.20x = 394,790.40 × 113,440.80
  4. Step 4: Simplify right side
    263,323.20x = 44,785,338,808.32
  5. Step 5: Solve for x
    x = 44,785,338,808.32/263,323.20
  6. Step 6: Final answer
    x = 170,077.45

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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.