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Finding the Fourth Proportional to 1,193.26, 1,646.75 and 695.82

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Solution

The fourth proportional to 1,193.26, 1,646.75 and 695.82 is: 960.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.26 : 1,646.75 = 695.82 : x
  2. Step 2: Convert to fraction form
    1,193.26/1,646.75 = 695.82/x
  3. Step 3: Cross multiply
    1,193.26x = 1,646.75 × 695.82
  4. Step 4: Simplify right side
    1,193.26x = 1,145,841.59
  5. Step 5: Solve for x
    x = 1,145,841.59/1,193.26
  6. Step 6: Final answer
    x = 960.26

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Half scale
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1.5x scale

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.