Home / 293,640.12-440,365.41-83,221.56

Finding the Fourth Proportional to 293,640.12, 440,365.41 and 83,221.56

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Solution

The fourth proportional to 293,640.12, 440,365.41 and 83,221.56 is: 124,805.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,640.12 : 440,365.41 = 83,221.56 : x
  2. Step 2: Convert to fraction form
    293,640.12/440,365.41 = 83,221.56/x
  3. Step 3: Cross multiply
    293,640.12x = 440,365.41 × 83,221.56
  4. Step 4: Simplify right side
    293,640.12x = 36,647,896,390.24
  5. Step 5: Solve for x
    x = 36,647,896,390.24/293,640.12
  6. Step 6: Final answer
    x = 124,805.48

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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.