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Finding the Third Proportional to 985,212 and 2,117,763

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Solution

The third proportional to 985,212 and 2,117,763 is: 4,552,238.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,212 : 2,117,763 = 2,117,763 : x
  2. Step 2: Convert to fraction form
    985,212/2,117,763 = 2,117,763/x
  3. Step 3: Cross multiply
    985,212x = 2,117,763 × 2,117,763
  4. Step 4: Simplify right side
    985,212x = 4,484,920,124,169
  5. Step 5: Solve for x
    x = 4,484,920,124,169/985,212
  6. Step 6: Final answer
    x = 4,552,238.63

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.