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Finding the Third Proportional to 842,215 and 1,295,851

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Solution

The third proportional to 842,215 and 1,295,851 is: 1,993,825.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,215 : 1,295,851 = 1,295,851 : x
  2. Step 2: Convert to fraction form
    842,215/1,295,851 = 1,295,851/x
  3. Step 3: Cross multiply
    842,215x = 1,295,851 × 1,295,851
  4. Step 4: Simplify right side
    842,215x = 1,679,229,814,201
  5. Step 5: Solve for x
    x = 1,679,229,814,201/842,215
  6. Step 6: Final answer
    x = 1,993,825.58

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.