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Finding the Fourth Proportional to 455,849.63, 629,072.51 and 254,645.63

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Solution

The fourth proportional to 455,849.63, 629,072.51 and 254,645.63 is: 351,410.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,849.63 : 629,072.51 = 254,645.63 : x
  2. Step 2: Convert to fraction form
    455,849.63/629,072.51 = 254,645.63/x
  3. Step 3: Cross multiply
    455,849.63x = 629,072.51 × 254,645.63
  4. Step 4: Simplify right side
    455,849.63x = 160,190,561,206.04
  5. Step 5: Solve for x
    x = 160,190,561,206.04/455,849.63
  6. Step 6: Final answer
    x = 351,410.98

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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.