Home / 396,542.78-547,238.27-235,398.44

Finding the Fourth Proportional to 396,542.78, 547,238.27 and 235,398.44

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Solution

The fourth proportional to 396,542.78, 547,238.27 and 235,398.44 is: 324,855.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,542.78 : 547,238.27 = 235,398.44 : x
  2. Step 2: Convert to fraction form
    396,542.78/547,238.27 = 235,398.44/x
  3. Step 3: Cross multiply
    396,542.78x = 547,238.27 × 235,398.44
  4. Step 4: Simplify right side
    396,542.78x = 128,819,032,918.60
  5. Step 5: Solve for x
    x = 128,819,032,918.60/396,542.78
  6. Step 6: Final answer
    x = 324,855.33

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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.