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Finding the Fourth Proportional to 396,321.18, 594,481.80 and 130,010.22

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Solution

The fourth proportional to 396,321.18, 594,481.80 and 130,010.22 is: 195,015.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,321.18 : 594,481.80 = 130,010.22 : x
  2. Step 2: Convert to fraction form
    396,321.18/594,481.80 = 130,010.22/x
  3. Step 3: Cross multiply
    396,321.18x = 594,481.80 × 130,010.22
  4. Step 4: Simplify right side
    396,321.18x = 77,288,709,604.00
  5. Step 5: Solve for x
    x = 77,288,709,604.00/396,321.18
  6. Step 6: Final answer
    x = 195,015.34

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1.5x scale

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.