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Finding the Third Proportional to 646,616 and 1,405,168

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Solution

The third proportional to 646,616 and 1,405,168 is: 3,053,585.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,616 : 1,405,168 = 1,405,168 : x
  2. Step 2: Convert to fraction form
    646,616/1,405,168 = 1,405,168/x
  3. Step 3: Cross multiply
    646,616x = 1,405,168 × 1,405,168
  4. Step 4: Simplify right side
    646,616x = 1,974,497,108,224
  5. Step 5: Solve for x
    x = 1,974,497,108,224/646,616
  6. Step 6: Final answer
    x = 3,053,585.29

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.