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Finding the Fourth Proportional to 368,383.73, 551,918.20 and 199,796.53

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Solution

The fourth proportional to 368,383.73, 551,918.20 and 199,796.53 is: 299,338.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,383.73 : 551,918.20 = 199,796.53 : x
  2. Step 2: Convert to fraction form
    368,383.73/551,918.20 = 199,796.53/x
  3. Step 3: Cross multiply
    368,383.73x = 551,918.20 × 199,796.53
  4. Step 4: Simplify right side
    368,383.73x = 110,271,339,324.56
  5. Step 5: Solve for x
    x = 110,271,339,324.56/368,383.73
  6. Step 6: Final answer
    x = 299,338.25

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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.