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Finding the Fourth Proportional to 396,994.25, 595,489.95 and 172,325.36

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Solution

The fourth proportional to 396,994.25, 595,489.95 and 172,325.36 is: 258,487.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,994.25 : 595,489.95 = 172,325.36 : x
  2. Step 2: Convert to fraction form
    396,994.25/595,489.95 = 172,325.36/x
  3. Step 3: Cross multiply
    396,994.25x = 595,489.95 × 172,325.36
  4. Step 4: Simplify right side
    396,994.25x = 102,618,017,032.68
  5. Step 5: Solve for x
    x = 102,618,017,032.68/396,994.25
  6. Step 6: Final answer
    x = 258,487.42

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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.