Home / 396,933.78-547,496.91-253,630.20

Finding the Fourth Proportional to 396,933.78, 547,496.91 and 253,630.20

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Solution

The fourth proportional to 396,933.78, 547,496.91 and 253,630.20 is: 349,836.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,933.78 : 547,496.91 = 253,630.20 : x
  2. Step 2: Convert to fraction form
    396,933.78/547,496.91 = 253,630.20/x
  3. Step 3: Cross multiply
    396,933.78x = 547,496.91 × 253,630.20
  4. Step 4: Simplify right side
    396,933.78x = 138,861,750,782.68
  5. Step 5: Solve for x
    x = 138,861,750,782.68/396,933.78
  6. Step 6: Final answer
    x = 349,836.06

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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.