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Finding the Fourth Proportional to 665,883.44, 998,854.32 and 192,616.64

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Solution

The fourth proportional to 665,883.44, 998,854.32 and 192,616.64 is: 288,933.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,883.44 : 998,854.32 = 192,616.64 : x
  2. Step 2: Convert to fraction form
    665,883.44/998,854.32 = 192,616.64/x
  3. Step 3: Cross multiply
    665,883.44x = 998,854.32 × 192,616.64
  4. Step 4: Simplify right side
    665,883.44x = 192,395,962,967.89
  5. Step 5: Solve for x
    x = 192,395,962,967.89/665,883.44
  6. Step 6: Final answer
    x = 288,933.39

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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.