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Finding the Third Proportional to 818,442 and 1,778,553

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Solution

The third proportional to 818,442 and 1,778,553 is: 3,864,966.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,442 : 1,778,553 = 1,778,553 : x
  2. Step 2: Convert to fraction form
    818,442/1,778,553 = 1,778,553/x
  3. Step 3: Cross multiply
    818,442x = 1,778,553 × 1,778,553
  4. Step 4: Simplify right side
    818,442x = 3,163,250,773,809
  5. Step 5: Solve for x
    x = 3,163,250,773,809/818,442
  6. Step 6: Final answer
    x = 3,864,966.33

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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.