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Finding the Third Proportional to 491,695 and 759,378.75

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Solution

The third proportional to 491,695 and 759,378.75 is: 1,172,792.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,695 : 759,378.75 = 759,378.75 : x
  2. Step 2: Convert to fraction form
    491,695/759,378.75 = 759,378.75/x
  3. Step 3: Cross multiply
    491,695x = 759,378.75 × 759,378.75
  4. Step 4: Simplify right side
    491,695x = 576,656,085,951.56
  5. Step 5: Solve for x
    x = 576,656,085,951.56/491,695
  6. Step 6: Final answer
    x = 1,172,792.25

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.