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Finding the Fourth Proportional to 396,063.88, 546,602.72 and 217,250.44

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Solution

The fourth proportional to 396,063.88, 546,602.72 and 217,250.44 is: 299,824.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,063.88 : 546,602.72 = 217,250.44 : x
  2. Step 2: Convert to fraction form
    396,063.88/546,602.72 = 217,250.44/x
  3. Step 3: Cross multiply
    396,063.88x = 546,602.72 × 217,250.44
  4. Step 4: Simplify right side
    396,063.88x = 118,749,681,425.20
  5. Step 5: Solve for x
    x = 118,749,681,425.20/396,063.88
  6. Step 6: Final answer
    x = 299,824.57

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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.