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Finding the Third Proportional to 999,321 and 2,197,932

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Solution

The third proportional to 999,321 and 2,197,932 is: 4,834,187.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,321 : 2,197,932 = 2,197,932 : x
  2. Step 2: Convert to fraction form
    999,321/2,197,932 = 2,197,932/x
  3. Step 3: Cross multiply
    999,321x = 2,197,932 × 2,197,932
  4. Step 4: Simplify right side
    999,321x = 4,830,905,076,624
  5. Step 5: Solve for x
    x = 4,830,905,076,624/999,321
  6. Step 6: Final answer
    x = 4,834,187.49

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.