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Finding the Fourth Proportional to 937.36, 1,293.16 and 626.96

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Solution

The fourth proportional to 937.36, 1,293.16 and 626.96 is: 864.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.36 : 1,293.16 = 626.96 : x
  2. Step 2: Convert to fraction form
    937.36/1,293.16 = 626.96/x
  3. Step 3: Cross multiply
    937.36x = 1,293.16 × 626.96
  4. Step 4: Simplify right side
    937.36x = 810,759.59
  5. Step 5: Solve for x
    x = 810,759.59/937.36
  6. Step 6: Final answer
    x = 864.94

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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.