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Finding the Fourth Proportional to 995.36, 1,373.36 and 696.23

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Solution

The fourth proportional to 995.36, 1,373.36 and 696.23 is: 960.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.36 : 1,373.36 = 696.23 : x
  2. Step 2: Convert to fraction form
    995.36/1,373.36 = 696.23/x
  3. Step 3: Cross multiply
    995.36x = 1,373.36 × 696.23
  4. Step 4: Simplify right side
    995.36x = 956,169.23
  5. Step 5: Solve for x
    x = 956,169.23/995.36
  6. Step 6: Final answer
    x = 960.63

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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.