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Finding the Fourth Proportional to 220,694.96, 330,404.12 and 197,904.80

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Solution

The fourth proportional to 220,694.96, 330,404.12 and 197,904.80 is: 296,284.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,694.96 : 330,404.12 = 197,904.80 : x
  2. Step 2: Convert to fraction form
    220,694.96/330,404.12 = 197,904.80/x
  3. Step 3: Cross multiply
    220,694.96x = 330,404.12 × 197,904.80
  4. Step 4: Simplify right side
    220,694.96x = 65,388,561,287.78
  5. Step 5: Solve for x
    x = 65,388,561,287.78/220,694.96
  6. Step 6: Final answer
    x = 296,284.80

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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.