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Finding the Third Proportional to 444.75 and 696.28

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Solution

The third proportional to 444.75 and 696.28 is: 1,090.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.75 : 696.28 = 696.28 : x
  2. Step 2: Convert to fraction form
    444.75/696.28 = 696.28/x
  3. Step 3: Cross multiply
    444.75x = 696.28 × 696.28
  4. Step 4: Simplify right side
    444.75x = 484,807.58
  5. Step 5: Solve for x
    x = 484,807.58/444.75
  6. Step 6: Final answer
    x = 1,090.07

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.