Home / 263,400.93-395,190.09-83,515.73

Finding the Fourth Proportional to 263,400.93, 395,190.09 and 83,515.73

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Solution

The fourth proportional to 263,400.93, 395,190.09 and 83,515.73 is: 125,301.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,400.93 : 395,190.09 = 83,515.73 : x
  2. Step 2: Convert to fraction form
    263,400.93/395,190.09 = 83,515.73/x
  3. Step 3: Cross multiply
    263,400.93x = 395,190.09 × 83,515.73
  4. Step 4: Simplify right side
    263,400.93x = 33,004,586,879.17
  5. Step 5: Solve for x
    x = 33,004,586,879.17/263,400.93
  6. Step 6: Final answer
    x = 125,301.71

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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.