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Finding the Fourth Proportional to 2,663.99, 3,995.98 and 716.19

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Solution

The fourth proportional to 2,663.99, 3,995.98 and 716.19 is: 1,074.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,663.99 : 3,995.98 = 716.19 : x
  2. Step 2: Convert to fraction form
    2,663.99/3,995.98 = 716.19/x
  3. Step 3: Cross multiply
    2,663.99x = 3,995.98 × 716.19
  4. Step 4: Simplify right side
    2,663.99x = 2,861,894.11
  5. Step 5: Solve for x
    x = 2,861,894.11/2,663.99
  6. Step 6: Final answer
    x = 1,074.29

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.