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Finding the Third Proportional to 426,344 and 911,764

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Solution

The third proportional to 426,344 and 911,764 is: 1,949,865.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,344 : 911,764 = 911,764 : x
  2. Step 2: Convert to fraction form
    426,344/911,764 = 911,764/x
  3. Step 3: Cross multiply
    426,344x = 911,764 × 911,764
  4. Step 4: Simplify right side
    426,344x = 831,313,591,696
  5. Step 5: Solve for x
    x = 831,313,591,696/426,344
  6. Step 6: Final answer
    x = 1,949,865.82

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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.