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Finding the Fourth Proportional to 455,900.44, 629,109.66 and 251,948.92

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Solution

The fourth proportional to 455,900.44, 629,109.66 and 251,948.92 is: 347,671.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,900.44 : 629,109.66 = 251,948.92 : x
  2. Step 2: Convert to fraction form
    455,900.44/629,109.66 = 251,948.92/x
  3. Step 3: Cross multiply
    455,900.44x = 629,109.66 × 251,948.92
  4. Step 4: Simplify right side
    455,900.44x = 158,503,499,398.57
  5. Step 5: Solve for x
    x = 158,503,499,398.57/455,900.44
  6. Step 6: Final answer
    x = 347,671.30

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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.