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Finding the Fourth Proportional to 662,992.98, 994,499.19 and 189,679.20

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Solution

The fourth proportional to 662,992.98, 994,499.19 and 189,679.20 is: 284,521.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,992.98 : 994,499.19 = 189,679.20 : x
  2. Step 2: Convert to fraction form
    662,992.98/994,499.19 = 189,679.20/x
  3. Step 3: Cross multiply
    662,992.98x = 994,499.19 × 189,679.20
  4. Step 4: Simplify right side
    662,992.98x = 188,635,810,759.85
  5. Step 5: Solve for x
    x = 188,635,810,759.85/662,992.98
  6. Step 6: Final answer
    x = 284,521.58

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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.