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Finding the Third Proportional to 621,488 and 1,353,692

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Solution

The third proportional to 621,488 and 1,353,692 is: 2,948,539.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,488 : 1,353,692 = 1,353,692 : x
  2. Step 2: Convert to fraction form
    621,488/1,353,692 = 1,353,692/x
  3. Step 3: Cross multiply
    621,488x = 1,353,692 × 1,353,692
  4. Step 4: Simplify right side
    621,488x = 1,832,482,030,864
  5. Step 5: Solve for x
    x = 1,832,482,030,864/621,488
  6. Step 6: Final answer
    x = 2,948,539.68

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.