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Finding the Fourth Proportional to 1,183.22, 1,632.82 and 659.24

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Solution

The fourth proportional to 1,183.22, 1,632.82 and 659.24 is: 909.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.22 : 1,632.82 = 659.24 : x
  2. Step 2: Convert to fraction form
    1,183.22/1,632.82 = 659.24/x
  3. Step 3: Cross multiply
    1,183.22x = 1,632.82 × 659.24
  4. Step 4: Simplify right side
    1,183.22x = 1,076,420.26
  5. Step 5: Solve for x
    x = 1,076,420.26/1,183.22
  6. Step 6: Final answer
    x = 909.74

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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.