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Finding the Third Proportional to 611,100 and 1,315,816

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Solution

The third proportional to 611,100 and 1,315,816 is: 2,833,205.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,100 : 1,315,816 = 1,315,816 : x
  2. Step 2: Convert to fraction form
    611,100/1,315,816 = 1,315,816/x
  3. Step 3: Cross multiply
    611,100x = 1,315,816 × 1,315,816
  4. Step 4: Simplify right side
    611,100x = 1,731,371,745,856
  5. Step 5: Solve for x
    x = 1,731,371,745,856/611,100
  6. Step 6: Final answer
    x = 2,833,205.28

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.