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Finding the Fourth Proportional to 975.26, 1,346.26 and 695.54

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Solution

The fourth proportional to 975.26, 1,346.26 and 695.54 is: 960.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    975.26 : 1,346.26 = 695.54 : x
  2. Step 2: Convert to fraction form
    975.26/1,346.26 = 695.54/x
  3. Step 3: Cross multiply
    975.26x = 1,346.26 × 695.54
  4. Step 4: Simplify right side
    975.26x = 936,377.68
  5. Step 5: Solve for x
    x = 936,377.68/975.26
  6. Step 6: Final answer
    x = 960.13

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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.