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Finding the Fourth Proportional to 773.04, 1,163.74 and 706.08

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Solution

The fourth proportional to 773.04, 1,163.74 and 706.08 is: 1,062.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    773.04 : 1,163.74 = 706.08 : x
  2. Step 2: Convert to fraction form
    773.04/1,163.74 = 706.08/x
  3. Step 3: Cross multiply
    773.04x = 1,163.74 × 706.08
  4. Step 4: Simplify right side
    773.04x = 821,693.54
  5. Step 5: Solve for x
    x = 821,693.54/773.04
  6. Step 6: Final answer
    x = 1,062.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.