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Finding the Fourth Proportional to 1,195.26, 1,794.06 and 991.14

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Solution

The fourth proportional to 1,195.26, 1,794.06 and 991.14 is: 1,487.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195.26 : 1,794.06 = 991.14 : x
  2. Step 2: Convert to fraction form
    1,195.26/1,794.06 = 991.14/x
  3. Step 3: Cross multiply
    1,195.26x = 1,794.06 × 991.14
  4. Step 4: Simplify right side
    1,195.26x = 1,778,164.63
  5. Step 5: Solve for x
    x = 1,778,164.63/1,195.26
  6. Step 6: Final answer
    x = 1,487.68

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1.5x scale

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.