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Finding the Fourth Proportional to 386,717.44, 533,550.44 and 225,458.38

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Solution

The fourth proportional to 386,717.44, 533,550.44 and 225,458.38 is: 311,062.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,717.44 : 533,550.44 = 225,458.38 : x
  2. Step 2: Convert to fraction form
    386,717.44/533,550.44 = 225,458.38/x
  3. Step 3: Cross multiply
    386,717.44x = 533,550.44 × 225,458.38
  4. Step 4: Simplify right side
    386,717.44x = 120,293,417,850.69
  5. Step 5: Solve for x
    x = 120,293,417,850.69/386,717.44
  6. Step 6: Final answer
    x = 311,062.82

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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.