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Finding the Fourth Proportional to 1,193.27, 1,646.68 and 695.95

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Solution

The fourth proportional to 1,193.27, 1,646.68 and 695.95 is: 960.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.27 : 1,646.68 = 695.95 : x
  2. Step 2: Convert to fraction form
    1,193.27/1,646.68 = 695.95/x
  3. Step 3: Cross multiply
    1,193.27x = 1,646.68 × 695.95
  4. Step 4: Simplify right side
    1,193.27x = 1,146,007.03
  5. Step 5: Solve for x
    x = 1,146,007.03/1,193.27
  6. Step 6: Final answer
    x = 960.40

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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.