Home / 780,908.06-1,171,456.85-219,942.56

Finding the Fourth Proportional to 780,908.06, 1,171,456.85 and 219,942.56

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Solution

The fourth proportional to 780,908.06, 1,171,456.85 and 219,942.56 is: 329,940.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,908.06 : 1,171,456.85 = 219,942.56 : x
  2. Step 2: Convert to fraction form
    780,908.06/1,171,456.85 = 219,942.56/x
  3. Step 3: Cross multiply
    780,908.06x = 1,171,456.85 × 219,942.56
  4. Step 4: Simplify right side
    780,908.06x = 257,653,221,997.04
  5. Step 5: Solve for x
    x = 257,653,221,997.04/780,908.06
  6. Step 6: Final answer
    x = 329,940.53

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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.