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Finding the Third Proportional to 859,457 and 1,821,363

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Solution

The third proportional to 859,457 and 1,821,363 is: 3,859,836.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,457 : 1,821,363 = 1,821,363 : x
  2. Step 2: Convert to fraction form
    859,457/1,821,363 = 1,821,363/x
  3. Step 3: Cross multiply
    859,457x = 1,821,363 × 1,821,363
  4. Step 4: Simplify right side
    859,457x = 3,317,363,177,769
  5. Step 5: Solve for x
    x = 3,317,363,177,769/859,457
  6. Step 6: Final answer
    x = 3,859,836.13

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.