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Finding the Fourth Proportional to 324,648.60, 486,972.90 and 269,352.60

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Solution

The fourth proportional to 324,648.60, 486,972.90 and 269,352.60 is: 404,028.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,648.60 : 486,972.90 = 269,352.60 : x
  2. Step 2: Convert to fraction form
    324,648.60/486,972.90 = 269,352.60/x
  3. Step 3: Cross multiply
    324,648.60x = 486,972.90 × 269,352.60
  4. Step 4: Simplify right side
    324,648.60x = 131,167,416,744.54
  5. Step 5: Solve for x
    x = 131,167,416,744.54/324,648.60
  6. Step 6: Final answer
    x = 404,028.90

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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.