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Finding the Third Proportional to 457,890 and 994,602

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Solution

The third proportional to 457,890 and 994,602 is: 2,160,416.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,890 : 994,602 = 994,602 : x
  2. Step 2: Convert to fraction form
    457,890/994,602 = 994,602/x
  3. Step 3: Cross multiply
    457,890x = 994,602 × 994,602
  4. Step 4: Simplify right side
    457,890x = 989,233,138,404
  5. Step 5: Solve for x
    x = 989,233,138,404/457,890
  6. Step 6: Final answer
    x = 2,160,416.56

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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.