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Finding the Third Proportional to 251,555 and 373,909

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Solution

The third proportional to 251,555 and 373,909 is: 555,774.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,555 : 373,909 = 373,909 : x
  2. Step 2: Convert to fraction form
    251,555/373,909 = 373,909/x
  3. Step 3: Cross multiply
    251,555x = 373,909 × 373,909
  4. Step 4: Simplify right side
    251,555x = 139,807,940,281
  5. Step 5: Solve for x
    x = 139,807,940,281/251,555
  6. Step 6: Final answer
    x = 555,774.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.