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Finding the Third Proportional to 324.88 and 695.75

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Solution

The third proportional to 324.88 and 695.75 is: 1,490.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.88 : 695.75 = 695.75 : x
  2. Step 2: Convert to fraction form
    324.88/695.75 = 695.75/x
  3. Step 3: Cross multiply
    324.88x = 695.75 × 695.75
  4. Step 4: Simplify right side
    324.88x = 484,068.06
  5. Step 5: Solve for x
    x = 484,068.06/324.88
  6. Step 6: Final answer
    x = 1,490.01

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.