Home / 263,246.06-394,868.78-85,752.78

Finding the Fourth Proportional to 263,246.06, 394,868.78 and 85,752.78

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Solution

The fourth proportional to 263,246.06, 394,868.78 and 85,752.78 is: 128,629.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,246.06 : 394,868.78 = 85,752.78 : x
  2. Step 2: Convert to fraction form
    263,246.06/394,868.78 = 85,752.78/x
  3. Step 3: Cross multiply
    263,246.06x = 394,868.78 × 85,752.78
  4. Step 4: Simplify right side
    263,246.06x = 33,861,095,620.21
  5. Step 5: Solve for x
    x = 33,861,095,620.21/263,246.06
  6. Step 6: Final answer
    x = 128,629.07

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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.