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Finding the Fourth Proportional to 1,183.42, 1,633.16 and 659.42

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Solution

The fourth proportional to 1,183.42, 1,633.16 and 659.42 is: 910.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.42 : 1,633.16 = 659.42 : x
  2. Step 2: Convert to fraction form
    1,183.42/1,633.16 = 659.42/x
  3. Step 3: Cross multiply
    1,183.42x = 1,633.16 × 659.42
  4. Step 4: Simplify right side
    1,183.42x = 1,076,938.37
  5. Step 5: Solve for x
    x = 1,076,938.37/1,183.42
  6. Step 6: Final answer
    x = 910.02

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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.