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Finding the Third Proportional to 213,376 and 459,800

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Solution

The third proportional to 213,376 and 459,800 is: 990,814.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,376 : 459,800 = 459,800 : x
  2. Step 2: Convert to fraction form
    213,376/459,800 = 459,800/x
  3. Step 3: Cross multiply
    213,376x = 459,800 × 459,800
  4. Step 4: Simplify right side
    213,376x = 211,416,040,000
  5. Step 5: Solve for x
    x = 211,416,040,000/213,376
  6. Step 6: Final answer
    x = 990,814.52

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.