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Finding the Fourth Proportional to 3,544.99, 5,318.25 and 1,080.00

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Solution

The fourth proportional to 3,544.99, 5,318.25 and 1,080.00 is: 1,620.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,544.99 : 5,318.25 = 1,080.00 : x
  2. Step 2: Convert to fraction form
    3,544.99/5,318.25 = 1,080.00/x
  3. Step 3: Cross multiply
    3,544.99x = 5,318.25 × 1,080.00
  4. Step 4: Simplify right side
    3,544.99x = 5,743,725.90
  5. Step 5: Solve for x
    x = 5,743,725.90/3,544.99
  6. Step 6: Final answer
    x = 1,620.24

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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.