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Finding the Fourth Proportional to 1,163.48, 1,744.94 and 460.64

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Solution

The fourth proportional to 1,163.48, 1,744.94 and 460.64 is: 690.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163.48 : 1,744.94 = 460.64 : x
  2. Step 2: Convert to fraction form
    1,163.48/1,744.94 = 460.64/x
  3. Step 3: Cross multiply
    1,163.48x = 1,744.94 × 460.64
  4. Step 4: Simplify right side
    1,163.48x = 803,778.13
  5. Step 5: Solve for x
    x = 803,778.13/1,163.48
  6. Step 6: Final answer
    x = 690.84

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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.