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Finding the Third Proportional to 818,440 and 1,778,549

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Solution

The third proportional to 818,440 and 1,778,549 is: 3,864,958.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,440 : 1,778,549 = 1,778,549 : x
  2. Step 2: Convert to fraction form
    818,440/1,778,549 = 1,778,549/x
  3. Step 3: Cross multiply
    818,440x = 1,778,549 × 1,778,549
  4. Step 4: Simplify right side
    818,440x = 3,163,236,545,401
  5. Step 5: Solve for x
    x = 3,163,236,545,401/818,440
  6. Step 6: Final answer
    x = 3,864,958.39

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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.