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Finding the Third Proportional to 917,596 and 2,021,815

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Solution

The third proportional to 917,596 and 2,021,815 is: 4,454,831.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,596 : 2,021,815 = 2,021,815 : x
  2. Step 2: Convert to fraction form
    917,596/2,021,815 = 2,021,815/x
  3. Step 3: Cross multiply
    917,596x = 2,021,815 × 2,021,815
  4. Step 4: Simplify right side
    917,596x = 4,087,735,894,225
  5. Step 5: Solve for x
    x = 4,087,735,894,225/917,596
  6. Step 6: Final answer
    x = 4,454,831.86

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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.