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Finding the Third Proportional to 201,890,989.50 and 439,211,379

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Solution

The third proportional to 201,890,989.50 and 439,211,379 is: 955,498,984.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,890,989.50 : 439,211,379 = 439,211,379 : x
  2. Step 2: Convert to fraction form
    201,890,989.50/439,211,379 = 439,211,379/x
  3. Step 3: Cross multiply
    201,890,989.50x = 439,211,379 × 439,211,379
  4. Step 4: Simplify right side
    201,890,989.50x = 192,906,635,443,081,632
  5. Step 5: Solve for x
    x = 192,906,635,443,081,632/201,890,989.50
  6. Step 6: Final answer
    x = 955,498,984.48

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.