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Finding the Fourth Proportional to 396,637.74, 594,365.76 and 219,195.42

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Solution

The fourth proportional to 396,637.74, 594,365.76 and 219,195.42 is: 328,466.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,637.74 : 594,365.76 = 219,195.42 : x
  2. Step 2: Convert to fraction form
    396,637.74/594,365.76 = 219,195.42/x
  3. Step 3: Cross multiply
    396,637.74x = 594,365.76 × 219,195.42
  4. Step 4: Simplify right side
    396,637.74x = 130,282,252,396.82
  5. Step 5: Solve for x
    x = 130,282,252,396.82/396,637.74
  6. Step 6: Final answer
    x = 328,466.61

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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.