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Finding the Third Proportional to 171,990 and 260,583

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Solution

The third proportional to 171,990 and 260,583 is: 394,810.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,990 : 260,583 = 260,583 : x
  2. Step 2: Convert to fraction form
    171,990/260,583 = 260,583/x
  3. Step 3: Cross multiply
    171,990x = 260,583 × 260,583
  4. Step 4: Simplify right side
    171,990x = 67,903,499,889
  5. Step 5: Solve for x
    x = 67,903,499,889/171,990
  6. Step 6: Final answer
    x = 394,810.74

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.