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Finding the Fourth Proportional to 1,194.95, 1,649.59 and 797.28

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Solution

The fourth proportional to 1,194.95, 1,649.59 and 797.28 is: 1,100.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.95 : 1,649.59 = 797.28 : x
  2. Step 2: Convert to fraction form
    1,194.95/1,649.59 = 797.28/x
  3. Step 3: Cross multiply
    1,194.95x = 1,649.59 × 797.28
  4. Step 4: Simplify right side
    1,194.95x = 1,315,185.12
  5. Step 5: Solve for x
    x = 1,315,185.12/1,194.95
  6. Step 6: Final answer
    x = 1,100.62

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Double 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.