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Finding the Third Proportional to 790,640 and 1,738,724

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Solution

The third proportional to 790,640 and 1,738,724 is: 3,823,688.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,640 : 1,738,724 = 1,738,724 : x
  2. Step 2: Convert to fraction form
    790,640/1,738,724 = 1,738,724/x
  3. Step 3: Cross multiply
    790,640x = 1,738,724 × 1,738,724
  4. Step 4: Simplify right side
    790,640x = 3,023,161,148,176
  5. Step 5: Solve for x
    x = 3,023,161,148,176/790,640
  6. Step 6: Final answer
    x = 3,823,688.59

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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.