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Finding the Fourth Proportional to 619,435.44, 929,723.40 and 383,239.44

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Solution

The fourth proportional to 619,435.44, 929,723.40 and 383,239.44 is: 575,211.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,435.44 : 929,723.40 = 383,239.44 : x
  2. Step 2: Convert to fraction form
    619,435.44/929,723.40 = 383,239.44/x
  3. Step 3: Cross multiply
    619,435.44x = 929,723.40 × 383,239.44
  4. Step 4: Simplify right side
    619,435.44x = 356,306,675,170.90
  5. Step 5: Solve for x
    x = 356,306,675,170.90/619,435.44
  6. Step 6: Final answer
    x = 575,211.96

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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.