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Finding the Fourth Proportional to 396,049.68, 546,371.40 and 234,911.52

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Solution

The fourth proportional to 396,049.68, 546,371.40 and 234,911.52 is: 324,072.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,049.68 : 546,371.40 = 234,911.52 : x
  2. Step 2: Convert to fraction form
    396,049.68/546,371.40 = 234,911.52/x
  3. Step 3: Cross multiply
    396,049.68x = 546,371.40 × 234,911.52
  4. Step 4: Simplify right side
    396,049.68x = 128,348,936,058.53
  5. Step 5: Solve for x
    x = 128,348,936,058.53/396,049.68
  6. Step 6: Final answer
    x = 324,072.82

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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.