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Finding the Third Proportional to 542,679 and 1,157,406

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Solution

The third proportional to 542,679 and 1,157,406 is: 2,468,473.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,679 : 1,157,406 = 1,157,406 : x
  2. Step 2: Convert to fraction form
    542,679/1,157,406 = 1,157,406/x
  3. Step 3: Cross multiply
    542,679x = 1,157,406 × 1,157,406
  4. Step 4: Simplify right side
    542,679x = 1,339,588,648,836
  5. Step 5: Solve for x
    x = 1,339,588,648,836/542,679
  6. Step 6: Final answer
    x = 2,468,473.35

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.