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Finding the Fourth Proportional to 1,183.97, 1,775.95 and 403.97

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Solution

The fourth proportional to 1,183.97, 1,775.95 and 403.97 is: 605.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.97 : 1,775.95 = 403.97 : x
  2. Step 2: Convert to fraction form
    1,183.97/1,775.95 = 403.97/x
  3. Step 3: Cross multiply
    1,183.97x = 1,775.95 × 403.97
  4. Step 4: Simplify right side
    1,183.97x = 717,420.63
  5. Step 5: Solve for x
    x = 717,420.63/1,183.97
  6. Step 6: Final answer
    x = 605.94

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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.