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Finding the Fourth Proportional to 401,088.43, 601,227.79 and 251,433.85

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Solution

The fourth proportional to 401,088.43, 601,227.79 and 251,433.85 is: 376,896.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,088.43 : 601,227.79 = 251,433.85 : x
  2. Step 2: Convert to fraction form
    401,088.43/601,227.79 = 251,433.85/x
  3. Step 3: Cross multiply
    401,088.43x = 601,227.79 × 251,433.85
  4. Step 4: Simplify right side
    401,088.43x = 151,169,015,978.54
  5. Step 5: Solve for x
    x = 151,169,015,978.54/401,088.43
  6. Step 6: Final answer
    x = 376,896.97

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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.