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Finding the Fourth Proportional to 1,183.74, 1,632.30 and 888.48

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Solution

The fourth proportional to 1,183.74, 1,632.30 and 888.48 is: 1,225.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.74 : 1,632.30 = 888.48 : x
  2. Step 2: Convert to fraction form
    1,183.74/1,632.30 = 888.48/x
  3. Step 3: Cross multiply
    1,183.74x = 1,632.30 × 888.48
  4. Step 4: Simplify right side
    1,183.74x = 1,450,265.90
  5. Step 5: Solve for x
    x = 1,450,265.90/1,183.74
  6. Step 6: Final answer
    x = 1,225.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.