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Finding the Fourth Proportional to 619,087.68, 854,026.56 and 404,353.44

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Solution

The fourth proportional to 619,087.68, 854,026.56 and 404,353.44 is: 557,802.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,087.68 : 854,026.56 = 404,353.44 : x
  2. Step 2: Convert to fraction form
    619,087.68/854,026.56 = 404,353.44/x
  3. Step 3: Cross multiply
    619,087.68x = 854,026.56 × 404,353.44
  4. Step 4: Simplify right side
    619,087.68x = 345,328,577,387.37
  5. Step 5: Solve for x
    x = 345,328,577,387.37/619,087.68
  6. Step 6: Final answer
    x = 557,802.37

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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.