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Finding the Third Proportional to 416,946 and 813,156

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Solution

The third proportional to 416,946 and 813,156 is: 1,585,871.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,946 : 813,156 = 813,156 : x
  2. Step 2: Convert to fraction form
    416,946/813,156 = 813,156/x
  3. Step 3: Cross multiply
    416,946x = 813,156 × 813,156
  4. Step 4: Simplify right side
    416,946x = 661,222,680,336
  5. Step 5: Solve for x
    x = 661,222,680,336/416,946
  6. Step 6: Final answer
    x = 1,585,871.26

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.