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Finding the Fourth Proportional to 496,063.98, 684,591.69 and 281,208.22

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Solution

The fourth proportional to 496,063.98, 684,591.69 and 281,208.22 is: 388,080.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,063.98 : 684,591.69 = 281,208.22 : x
  2. Step 2: Convert to fraction form
    496,063.98/684,591.69 = 281,208.22/x
  3. Step 3: Cross multiply
    496,063.98x = 684,591.69 × 281,208.22
  4. Step 4: Simplify right side
    496,063.98x = 192,512,810,571.69
  5. Step 5: Solve for x
    x = 192,512,810,571.69/496,063.98
  6. Step 6: Final answer
    x = 388,080.61

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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.