Home / 290,190.26-400,649.28-199,517.24

Finding the Fourth Proportional to 290,190.26, 400,649.28 and 199,517.24

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Solution

The fourth proportional to 290,190.26, 400,649.28 and 199,517.24 is: 275,462.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,190.26 : 400,649.28 = 199,517.24 : x
  2. Step 2: Convert to fraction form
    290,190.26/400,649.28 = 199,517.24/x
  3. Step 3: Cross multiply
    290,190.26x = 400,649.28 × 199,517.24
  4. Step 4: Simplify right side
    290,190.26x = 79,936,438,553.59
  5. Step 5: Solve for x
    x = 79,936,438,553.59/290,190.26
  6. Step 6: Final answer
    x = 275,462.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.