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Finding the Fourth Proportional to 619,215.48, 929,237.46 and 225,231.48

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Solution

The fourth proportional to 619,215.48, 929,237.46 and 225,231.48 is: 337,997.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,215.48 : 929,237.46 = 225,231.48 : x
  2. Step 2: Convert to fraction form
    619,215.48/929,237.46 = 225,231.48/x
  3. Step 3: Cross multiply
    619,215.48x = 929,237.46 × 225,231.48
  4. Step 4: Simplify right side
    619,215.48x = 209,293,528,387.24
  5. Step 5: Solve for x
    x = 209,293,528,387.24/619,215.48
  6. Step 6: Final answer
    x = 337,997.89

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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.