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Finding the Fourth Proportional to 324,665.60, 486,998.40 and 191,609.60

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Solution

The fourth proportional to 324,665.60, 486,998.40 and 191,609.60 is: 287,414.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,665.60 : 486,998.40 = 191,609.60 : x
  2. Step 2: Convert to fraction form
    324,665.60/486,998.40 = 191,609.60/x
  3. Step 3: Cross multiply
    324,665.60x = 486,998.40 × 191,609.60
  4. Step 4: Simplify right side
    324,665.60x = 93,313,568,624.64
  5. Step 5: Solve for x
    x = 93,313,568,624.64/324,665.60
  6. Step 6: Final answer
    x = 287,414.40

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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.