Home / 619,105.08-854,546.42-404,278.50

Finding the Fourth Proportional to 619,105.08, 854,546.42 and 404,278.50

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Solution

The fourth proportional to 619,105.08, 854,546.42 and 404,278.50 is: 558,022.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,105.08 : 854,546.42 = 404,278.50 : x
  2. Step 2: Convert to fraction form
    619,105.08/854,546.42 = 404,278.50/x
  3. Step 3: Cross multiply
    619,105.08x = 854,546.42 × 404,278.50
  4. Step 4: Simplify right side
    619,105.08x = 345,474,744,857.97
  5. Step 5: Solve for x
    x = 345,474,744,857.97/619,105.08
  6. Step 6: Final answer
    x = 558,022.79

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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.