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Finding the Fourth Proportional to 1,163.15, 1,744.26 and 469.62

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Solution

The fourth proportional to 1,163.15, 1,744.26 and 469.62 is: 704.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163.15 : 1,744.26 = 469.62 : x
  2. Step 2: Convert to fraction form
    1,163.15/1,744.26 = 469.62/x
  3. Step 3: Cross multiply
    1,163.15x = 1,744.26 × 469.62
  4. Step 4: Simplify right side
    1,163.15x = 819,139.38
  5. Step 5: Solve for x
    x = 819,139.38/1,163.15
  6. Step 6: Final answer
    x = 704.25

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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.