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Finding the Fourth Proportional to 396,800.58, 547,499.60 and 235,709.94

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Solution

The fourth proportional to 396,800.58, 547,499.60 and 235,709.94 is: 325,229.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,800.58 : 547,499.60 = 235,709.94 : x
  2. Step 2: Convert to fraction form
    396,800.58/547,499.60 = 235,709.94/x
  3. Step 3: Cross multiply
    396,800.58x = 547,499.60 × 235,709.94
  4. Step 4: Simplify right side
    396,800.58x = 129,051,097,866.02
  5. Step 5: Solve for x
    x = 129,051,097,866.02/396,800.58
  6. Step 6: Final answer
    x = 325,229.11

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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.