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Finding the Fourth Proportional to 995.28, 1,494 and 734.46

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Solution

The fourth proportional to 995.28, 1,494 and 734.46 is: 1,102.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.28 : 1,494 = 734.46 : x
  2. Step 2: Convert to fraction form
    995.28/1,494 = 734.46/x
  3. Step 3: Cross multiply
    995.28x = 1,494 × 734.46
  4. Step 4: Simplify right side
    995.28x = 1,097,283.24
  5. Step 5: Solve for x
    x = 1,097,283.24/995.28
  6. Step 6: Final answer
    x = 1,102.49

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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.