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Finding the Third Proportional to 504.75 and 759.75

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Solution

The third proportional to 504.75 and 759.75 is: 1,143.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.75 : 759.75 = 759.75 : x
  2. Step 2: Convert to fraction form
    504.75/759.75 = 759.75/x
  3. Step 3: Cross multiply
    504.75x = 759.75 × 759.75
  4. Step 4: Simplify right side
    504.75x = 577,220.06
  5. Step 5: Solve for x
    x = 577,220.06/504.75
  6. Step 6: Final answer
    x = 1,143.58

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.