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Finding the Fourth Proportional to 325,608.92, 449,354.16 and 189,620.94

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Solution

The fourth proportional to 325,608.92, 449,354.16 and 189,620.94 is: 261,684.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,608.92 : 449,354.16 = 189,620.94 : x
  2. Step 2: Convert to fraction form
    325,608.92/449,354.16 = 189,620.94/x
  3. Step 3: Cross multiply
    325,608.92x = 449,354.16 × 189,620.94
  4. Step 4: Simplify right side
    325,608.92x = 85,206,958,212.11
  5. Step 5: Solve for x
    x = 85,206,958,212.11/325,608.92
  6. Step 6: Final answer
    x = 261,684.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.