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Finding the Third Proportional to 211,900.50 and 457,416

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Solution

The third proportional to 211,900.50 and 457,416 is: 987,394.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,900.50 : 457,416 = 457,416 : x
  2. Step 2: Convert to fraction form
    211,900.50/457,416 = 457,416/x
  3. Step 3: Cross multiply
    211,900.50x = 457,416 × 457,416
  4. Step 4: Simplify right side
    211,900.50x = 209,229,397,056
  5. Step 5: Solve for x
    x = 209,229,397,056/211,900.50
  6. Step 6: Final answer
    x = 987,394.54

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.