Home / 403,743.94-557,163.89-222,451.66

Finding the Fourth Proportional to 403,743.94, 557,163.89 and 222,451.66

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Solution

The fourth proportional to 403,743.94, 557,163.89 and 222,451.66 is: 306,981.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,743.94 : 557,163.89 = 222,451.66 : x
  2. Step 2: Convert to fraction form
    403,743.94/557,163.89 = 222,451.66/x
  3. Step 3: Cross multiply
    403,743.94x = 557,163.89 × 222,451.66
  4. Step 4: Simplify right side
    403,743.94x = 123,942,029,717.39
  5. Step 5: Solve for x
    x = 123,942,029,717.39/403,743.94
  6. Step 6: Final answer
    x = 306,981.77

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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.