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Finding the Third Proportional to 818,939 and 1,772,020

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Solution

The third proportional to 818,939 and 1,772,020 is: 3,834,296.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,939 : 1,772,020 = 1,772,020 : x
  2. Step 2: Convert to fraction form
    818,939/1,772,020 = 1,772,020/x
  3. Step 3: Cross multiply
    818,939x = 1,772,020 × 1,772,020
  4. Step 4: Simplify right side
    818,939x = 3,140,054,880,400
  5. Step 5: Solve for x
    x = 3,140,054,880,400/818,939
  6. Step 6: Final answer
    x = 3,834,296.43

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.