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Finding the Fourth Proportional to 396,027.55, 594,041.33 and 218,880.55

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Solution

The fourth proportional to 396,027.55, 594,041.33 and 218,880.55 is: 328,320.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,027.55 : 594,041.33 = 218,880.55 : x
  2. Step 2: Convert to fraction form
    396,027.55/594,041.33 = 218,880.55/x
  3. Step 3: Cross multiply
    396,027.55x = 594,041.33 × 218,880.55
  4. Step 4: Simplify right side
    396,027.55x = 130,024,091,938.73
  5. Step 5: Solve for x
    x = 130,024,091,938.73/396,027.55
  6. Step 6: Final answer
    x = 328,320.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.