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Finding the Fourth Proportional to 665,758.11, 998,644.46 and 192,447.57

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Solution

The fourth proportional to 665,758.11, 998,644.46 and 192,447.57 is: 288,673.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,758.11 : 998,644.46 = 192,447.57 : x
  2. Step 2: Convert to fraction form
    665,758.11/998,644.46 = 192,447.57/x
  3. Step 3: Cross multiply
    665,758.11x = 998,644.46 × 192,447.57
  4. Step 4: Simplify right side
    665,758.11x = 192,186,699,620.96
  5. Step 5: Solve for x
    x = 192,186,699,620.96/665,758.11
  6. Step 6: Final answer
    x = 288,673.46

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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.