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Finding the Third Proportional to 262,690 and 416,028

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Solution

The third proportional to 262,690 and 416,028 is: 658,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,690 : 416,028 = 416,028 : x
  2. Step 2: Convert to fraction form
    262,690/416,028 = 416,028/x
  3. Step 3: Cross multiply
    262,690x = 416,028 × 416,028
  4. Step 4: Simplify right side
    262,690x = 173,079,296,784
  5. Step 5: Solve for x
    x = 173,079,296,784/262,690
  6. Step 6: Final answer
    x = 658,872.80

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.