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Finding the Fourth Proportional to 995.42, 1,372.74 and 733.52

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Solution

The fourth proportional to 995.42, 1,372.74 and 733.52 is: 1,011.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.42 : 1,372.74 = 733.52 : x
  2. Step 2: Convert to fraction form
    995.42/1,372.74 = 733.52/x
  3. Step 3: Cross multiply
    995.42x = 1,372.74 × 733.52
  4. Step 4: Simplify right side
    995.42x = 1,006,932.24
  5. Step 5: Solve for x
    x = 1,006,932.24/995.42
  6. Step 6: Final answer
    x = 1,011.57

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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.