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Finding the Fourth Proportional to 455,959.63, 629,256.87 and 252,006.17

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Solution

The fourth proportional to 455,959.63, 629,256.87 and 252,006.17 is: 347,786.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,959.63 : 629,256.87 = 252,006.17 : x
  2. Step 2: Convert to fraction form
    455,959.63/629,256.87 = 252,006.17/x
  3. Step 3: Cross multiply
    455,959.63x = 629,256.87 × 252,006.17
  4. Step 4: Simplify right side
    455,959.63x = 158,576,609,348.57
  5. Step 5: Solve for x
    x = 158,576,609,348.57/455,959.63
  6. Step 6: Final answer
    x = 347,786.51

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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.