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Finding the Fourth Proportional to 455,954.18, 629,197.17 and 251,994.56

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Solution

The fourth proportional to 455,954.18, 629,197.17 and 251,994.56 is: 347,741.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,954.18 : 629,197.17 = 251,994.56 : x
  2. Step 2: Convert to fraction form
    455,954.18/629,197.17 = 251,994.56/x
  3. Step 3: Cross multiply
    455,954.18x = 629,197.17 × 251,994.56
  4. Step 4: Simplify right side
    455,954.18x = 158,554,260,861.41
  5. Step 5: Solve for x
    x = 158,554,260,861.41/455,954.18
  6. Step 6: Final answer
    x = 347,741.66

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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.