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Finding the Fourth Proportional to 455,960.13, 629,257.56 and 252,006.67

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Solution

The fourth proportional to 455,960.13, 629,257.56 and 252,006.67 is: 347,787.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,960.13 : 629,257.56 = 252,006.67 : x
  2. Step 2: Convert to fraction form
    455,960.13/629,257.56 = 252,006.67/x
  3. Step 3: Cross multiply
    455,960.13x = 629,257.56 × 252,006.67
  4. Step 4: Simplify right side
    455,960.13x = 158,577,102,267.93
  5. Step 5: Solve for x
    x = 158,577,102,267.93/455,960.13
  6. Step 6: Final answer
    x = 347,787.21

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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.