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Finding the Third Proportional to 393,146 and 837,808

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Solution

The third proportional to 393,146 and 837,808 is: 1,785,398.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,146 : 837,808 = 837,808 : x
  2. Step 2: Convert to fraction form
    393,146/837,808 = 837,808/x
  3. Step 3: Cross multiply
    393,146x = 837,808 × 837,808
  4. Step 4: Simplify right side
    393,146x = 701,922,244,864
  5. Step 5: Solve for x
    x = 701,922,244,864/393,146
  6. Step 6: Final answer
    x = 1,785,398.41

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.