Home / 312,933.58-431,844.56-169,691.91

Finding the Fourth Proportional to 312,933.58, 431,844.56 and 169,691.91

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Solution

The fourth proportional to 312,933.58, 431,844.56 and 169,691.91 is: 234,172.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,933.58 : 431,844.56 = 169,691.91 : x
  2. Step 2: Convert to fraction form
    312,933.58/431,844.56 = 169,691.91/x
  3. Step 3: Cross multiply
    312,933.58x = 431,844.56 × 169,691.91
  4. Step 4: Simplify right side
    312,933.58x = 73,280,529,761.62
  5. Step 5: Solve for x
    x = 73,280,529,761.62/312,933.58
  6. Step 6: Final answer
    x = 234,172.79

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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.