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Finding the Fourth Proportional to 937.44, 1,293.24 and 740.64

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Solution

The fourth proportional to 937.44, 1,293.24 and 740.64 is: 1,021.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.44 : 1,293.24 = 740.64 : x
  2. Step 2: Convert to fraction form
    937.44/1,293.24 = 740.64/x
  3. Step 3: Cross multiply
    937.44x = 1,293.24 × 740.64
  4. Step 4: Simplify right side
    937.44x = 957,825.27
  5. Step 5: Solve for x
    x = 957,825.27/937.44
  6. Step 6: Final answer
    x = 1,021.75

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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.