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Finding the Fourth Proportional to 2,359.99, 3,540.00 and 716.56

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Solution

The fourth proportional to 2,359.99, 3,540.00 and 716.56 is: 1,074.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,359.99 : 3,540.00 = 716.56 : x
  2. Step 2: Convert to fraction form
    2,359.99/3,540.00 = 716.56/x
  3. Step 3: Cross multiply
    2,359.99x = 3,540.00 × 716.56
  4. Step 4: Simplify right side
    2,359.99x = 2,536,616.24
  5. Step 5: Solve for x
    x = 2,536,616.24/2,359.99
  6. Step 6: Final answer
    x = 1,074.84

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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.