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Finding the Fourth Proportional to 665,878.44, 998,846.82 and 192,611.64

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Solution

The fourth proportional to 665,878.44, 998,846.82 and 192,611.64 is: 288,925.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,878.44 : 998,846.82 = 192,611.64 : x
  2. Step 2: Convert to fraction form
    665,878.44/998,846.82 = 192,611.64/x
  3. Step 3: Cross multiply
    665,878.44x = 998,846.82 × 192,611.64
  4. Step 4: Simplify right side
    665,878.44x = 192,389,524,108.99
  5. Step 5: Solve for x
    x = 192,389,524,108.99/665,878.44
  6. Step 6: Final answer
    x = 288,925.89

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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.