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Finding the Fourth Proportional to 324,191.08, 447,477.78 and 188,255.80

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Solution

The fourth proportional to 324,191.08, 447,477.78 and 188,255.80 is: 259,847.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,191.08 : 447,477.78 = 188,255.80 : x
  2. Step 2: Convert to fraction form
    324,191.08/447,477.78 = 188,255.80/x
  3. Step 3: Cross multiply
    324,191.08x = 447,477.78 × 188,255.80
  4. Step 4: Simplify right side
    324,191.08x = 84,240,287,456.12
  5. Step 5: Solve for x
    x = 84,240,287,456.12/324,191.08
  6. Step 6: Final answer
    x = 259,847.64

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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.