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Finding the Fourth Proportional to 455,892.80, 629,054.24 and 254,676.80

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Solution

The fourth proportional to 455,892.80, 629,054.24 and 254,676.80 is: 351,410.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,892.80 : 629,054.24 = 254,676.80 : x
  2. Step 2: Convert to fraction form
    455,892.80/629,054.24 = 254,676.80/x
  3. Step 3: Cross multiply
    455,892.80x = 629,054.24 × 254,676.80
  4. Step 4: Simplify right side
    455,892.80x = 160,205,520,869.63
  5. Step 5: Solve for x
    x = 160,205,520,869.63/455,892.80
  6. Step 6: Final answer
    x = 351,410.51

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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.