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Finding the Fourth Proportional to 496,325.36, 685,050.66 and 281,591.12

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Solution

The fourth proportional to 496,325.36, 685,050.66 and 281,591.12 is: 388,664.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,325.36 : 685,050.66 = 281,591.12 : x
  2. Step 2: Convert to fraction form
    496,325.36/685,050.66 = 281,591.12/x
  3. Step 3: Cross multiply
    496,325.36x = 685,050.66 × 281,591.12
  4. Step 4: Simplify right side
    496,325.36x = 192,904,179,180.89
  5. Step 5: Solve for x
    x = 192,904,179,180.89/496,325.36
  6. Step 6: Final answer
    x = 388,664.77

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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.