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Finding the Third Proportional to 491,382 and 763,314.75

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Solution

The third proportional to 491,382 and 763,314.75 is: 1,185,736.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,382 : 763,314.75 = 763,314.75 : x
  2. Step 2: Convert to fraction form
    491,382/763,314.75 = 763,314.75/x
  3. Step 3: Cross multiply
    491,382x = 763,314.75 × 763,314.75
  4. Step 4: Simplify right side
    491,382x = 582,649,407,567.56
  5. Step 5: Solve for x
    x = 582,649,407,567.56/491,382
  6. Step 6: Final answer
    x = 1,185,736.16

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.