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Finding the Fourth Proportional to 422,379.15, 633,519.44 and 169,649.43

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Solution

The fourth proportional to 422,379.15, 633,519.44 and 169,649.43 is: 254,454.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,379.15 : 633,519.44 = 169,649.43 : x
  2. Step 2: Convert to fraction form
    422,379.15/633,519.44 = 169,649.43/x
  3. Step 3: Cross multiply
    422,379.15x = 633,519.44 × 169,649.43
  4. Step 4: Simplify right side
    422,379.15x = 107,476,211,889.92
  5. Step 5: Solve for x
    x = 107,476,211,889.92/422,379.15
  6. Step 6: Final answer
    x = 254,454.35

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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.