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Finding the Fourth Proportional to 436,439.44, 654,659.11 and 120,896.35

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Solution

The fourth proportional to 436,439.44, 654,659.11 and 120,896.35 is: 181,344.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,439.44 : 654,659.11 = 120,896.35 : x
  2. Step 2: Convert to fraction form
    436,439.44/654,659.11 = 120,896.35/x
  3. Step 3: Cross multiply
    436,439.44x = 654,659.11 × 120,896.35
  4. Step 4: Simplify right side
    436,439.44x = 79,145,895,407.72
  5. Step 5: Solve for x
    x = 79,145,895,407.72/436,439.44
  6. Step 6: Final answer
    x = 181,344.51

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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.