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Finding the Fourth Proportional to 1,183.59, 1,775.25 and 317.97

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Solution

The fourth proportional to 1,183.59, 1,775.25 and 317.97 is: 476.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.59 : 1,775.25 = 317.97 : x
  2. Step 2: Convert to fraction form
    1,183.59/1,775.25 = 317.97/x
  3. Step 3: Cross multiply
    1,183.59x = 1,775.25 × 317.97
  4. Step 4: Simplify right side
    1,183.59x = 564,476.24
  5. Step 5: Solve for x
    x = 564,476.24/1,183.59
  6. Step 6: Final answer
    x = 476.92

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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.