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Finding the Fourth Proportional to 453,107, 625,288.42 and 251,903

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Solution

The fourth proportional to 453,107, 625,288.42 and 251,903 is: 347,626.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,107 : 625,288.42 = 251,903 : x
  2. Step 2: Convert to fraction form
    453,107/625,288.42 = 251,903/x
  3. Step 3: Cross multiply
    453,107x = 625,288.42 × 251,903
  4. Step 4: Simplify right side
    453,107x = 157,512,028,863.26
  5. Step 5: Solve for x
    x = 157,512,028,863.26/453,107
  6. Step 6: Final answer
    x = 347,626.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.