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Finding the Third Proportional to 999,313 and 2,197,915

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Solution

The third proportional to 999,313 and 2,197,915 is: 4,834,151.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,313 : 2,197,915 = 2,197,915 : x
  2. Step 2: Convert to fraction form
    999,313/2,197,915 = 2,197,915/x
  3. Step 3: Cross multiply
    999,313x = 2,197,915 × 2,197,915
  4. Step 4: Simplify right side
    999,313x = 4,830,830,347,225
  5. Step 5: Solve for x
    x = 4,830,830,347,225/999,313
  6. Step 6: Final answer
    x = 4,834,151.41

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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.