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Finding the Third Proportional to 623,880 and 892,179

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Solution

The third proportional to 623,880 and 892,179 is: 1,275,859.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,880 : 892,179 = 892,179 : x
  2. Step 2: Convert to fraction form
    623,880/892,179 = 892,179/x
  3. Step 3: Cross multiply
    623,880x = 892,179 × 892,179
  4. Step 4: Simplify right side
    623,880x = 795,983,368,041
  5. Step 5: Solve for x
    x = 795,983,368,041/623,880
  6. Step 6: Final answer
    x = 1,275,859.73

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.