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Finding the Fourth Proportional to 396,519.80, 594,584.33 and 143,762.31

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Solution

The fourth proportional to 396,519.80, 594,584.33 and 143,762.31 is: 215,572.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,519.80 : 594,584.33 = 143,762.31 : x
  2. Step 2: Convert to fraction form
    396,519.80/594,584.33 = 143,762.31/x
  3. Step 3: Cross multiply
    396,519.80x = 594,584.33 × 143,762.31
  4. Step 4: Simplify right side
    396,519.80x = 85,478,816,051.79
  5. Step 5: Solve for x
    x = 85,478,816,051.79/396,519.80
  6. Step 6: Final answer
    x = 215,572.63

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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.