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Finding the Fourth Proportional to 413,735.80, 620,591.34 and 114,234.66

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Solution

The fourth proportional to 413,735.80, 620,591.34 and 114,234.66 is: 171,348.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,735.80 : 620,591.34 = 114,234.66 : x
  2. Step 2: Convert to fraction form
    413,735.80/620,591.34 = 114,234.66/x
  3. Step 3: Cross multiply
    413,735.80x = 620,591.34 × 114,234.66
  4. Step 4: Simplify right side
    413,735.80x = 70,893,040,723.84
  5. Step 5: Solve for x
    x = 70,893,040,723.84/413,735.80
  6. Step 6: Final answer
    x = 171,348.58

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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.