Home / 312,816.33-431,685.86-169,577.55

Finding the Fourth Proportional to 312,816.33, 431,685.86 and 169,577.55

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Solution

The fourth proportional to 312,816.33, 431,685.86 and 169,577.55 is: 234,016.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,816.33 : 431,685.86 = 169,577.55 : x
  2. Step 2: Convert to fraction form
    312,816.33/431,685.86 = 169,577.55/x
  3. Step 3: Cross multiply
    312,816.33x = 431,685.86 × 169,577.55
  4. Step 4: Simplify right side
    312,816.33x = 73,204,229,660.56
  5. Step 5: Solve for x
    x = 73,204,229,660.56/312,816.33
  6. Step 6: Final answer
    x = 234,016.65

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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.