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Finding the Fourth Proportional to 1,194.87, 1,649.51 and 797.19

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Solution

The fourth proportional to 1,194.87, 1,649.51 and 797.19 is: 1,100.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.87 : 1,649.51 = 797.19 : x
  2. Step 2: Convert to fraction form
    1,194.87/1,649.51 = 797.19/x
  3. Step 3: Cross multiply
    1,194.87x = 1,649.51 × 797.19
  4. Step 4: Simplify right side
    1,194.87x = 1,314,968.89
  5. Step 5: Solve for x
    x = 1,314,968.89/1,194.87
  6. Step 6: Final answer
    x = 1,100.51

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,195.87, 1,650.89 and 798.19
Similar ratio
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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.