Home / 275,212.27-379,618.11-198,843.58

Finding the Fourth Proportional to 275,212.27, 379,618.11 and 198,843.58

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Solution

The fourth proportional to 275,212.27, 379,618.11 and 198,843.58 is: 274,277.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,212.27 : 379,618.11 = 198,843.58 : x
  2. Step 2: Convert to fraction form
    275,212.27/379,618.11 = 198,843.58/x
  3. Step 3: Cross multiply
    275,212.27x = 379,618.11 × 198,843.58
  4. Step 4: Simplify right side
    275,212.27x = 75,484,624,025.23
  5. Step 5: Solve for x
    x = 75,484,624,025.23/275,212.27
  6. Step 6: Final answer
    x = 274,277.83

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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.