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Finding the Fourth Proportional to 396,872.51, 547,763.76 and 235,696.41

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Solution

The fourth proportional to 396,872.51, 547,763.76 and 235,696.41 is: 325,308.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,872.51 : 547,763.76 = 235,696.41 : x
  2. Step 2: Convert to fraction form
    396,872.51/547,763.76 = 235,696.41/x
  3. Step 3: Cross multiply
    396,872.51x = 547,763.76 × 235,696.41
  4. Step 4: Simplify right side
    396,872.51x = 129,105,951,760.10
  5. Step 5: Solve for x
    x = 129,105,951,760.10/396,872.51
  6. Step 6: Final answer
    x = 325,308.38

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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.