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Finding the Fourth Proportional to 995.68, 1,494.60 and 754.84

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Solution

The fourth proportional to 995.68, 1,494.60 and 754.84 is: 1,133.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.68 : 1,494.60 = 754.84 : x
  2. Step 2: Convert to fraction form
    995.68/1,494.60 = 754.84/x
  3. Step 3: Cross multiply
    995.68x = 1,494.60 × 754.84
  4. Step 4: Simplify right side
    995.68x = 1,128,183.86
  5. Step 5: Solve for x
    x = 1,128,183.86/995.68
  6. Step 6: Final answer
    x = 1,133.08

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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.