Home / 396,321.19-543,560.44-380,045.66

Finding the Fourth Proportional to 396,321.19, 543,560.44 and 380,045.66

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Solution

The fourth proportional to 396,321.19, 543,560.44 and 380,045.66 is: 521,238.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,321.19 : 543,560.44 = 380,045.66 : x
  2. Step 2: Convert to fraction form
    396,321.19/543,560.44 = 380,045.66/x
  3. Step 3: Cross multiply
    396,321.19x = 543,560.44 × 380,045.66
  4. Step 4: Simplify right side
    396,321.19x = 206,577,786,169.69
  5. Step 5: Solve for x
    x = 206,577,786,169.69/396,321.19
  6. Step 6: Final answer
    x = 521,238.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.