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Finding the Fourth Proportional to 1,163.34, 1,744.56 and 469.88

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Solution

The fourth proportional to 1,163.34, 1,744.56 and 469.88 is: 704.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163.34 : 1,744.56 = 469.88 : x
  2. Step 2: Convert to fraction form
    1,163.34/1,744.56 = 469.88/x
  3. Step 3: Cross multiply
    1,163.34x = 1,744.56 × 469.88
  4. Step 4: Simplify right side
    1,163.34x = 819,738.21
  5. Step 5: Solve for x
    x = 819,738.21/1,163.34
  6. Step 6: Final answer
    x = 704.64

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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.