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Finding the Third Proportional to 455,724 and 997,213

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Solution

The third proportional to 455,724 and 997,213 is: 2,182,096.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,724 : 997,213 = 997,213 : x
  2. Step 2: Convert to fraction form
    455,724/997,213 = 997,213/x
  3. Step 3: Cross multiply
    455,724x = 997,213 × 997,213
  4. Step 4: Simplify right side
    455,724x = 994,433,767,369
  5. Step 5: Solve for x
    x = 994,433,767,369/455,724
  6. Step 6: Final answer
    x = 2,182,096.55

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.