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Finding the Third Proportional to 329.75 and 607.75

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Solution

The third proportional to 329.75 and 607.75 is: 1,120.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.75 : 607.75 = 607.75 : x
  2. Step 2: Convert to fraction form
    329.75/607.75 = 607.75/x
  3. Step 3: Cross multiply
    329.75x = 607.75 × 607.75
  4. Step 4: Simplify right side
    329.75x = 369,360.06
  5. Step 5: Solve for x
    x = 369,360.06/329.75
  6. Step 6: Final answer
    x = 1,120.12

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Why These Related Problems?

These problems maintain the same ratio (1.84) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.