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Finding the Fourth Proportional to 995.04, 1,371.60 and 895.68

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Solution

The fourth proportional to 995.04, 1,371.60 and 895.68 is: 1,234.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.04 : 1,371.60 = 895.68 : x
  2. Step 2: Convert to fraction form
    995.04/1,371.60 = 895.68/x
  3. Step 3: Cross multiply
    995.04x = 1,371.60 × 895.68
  4. Step 4: Simplify right side
    995.04x = 1,228,514.69
  5. Step 5: Solve for x
    x = 1,228,514.69/995.04
  6. Step 6: Final answer
    x = 1,234.64

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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.