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Finding the Fourth Proportional to 519,698, 717,183.24 and 281,234

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Solution

The fourth proportional to 519,698, 717,183.24 and 281,234 is: 388,102.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,698 : 717,183.24 = 281,234 : x
  2. Step 2: Convert to fraction form
    519,698/717,183.24 = 281,234/x
  3. Step 3: Cross multiply
    519,698x = 717,183.24 × 281,234
  4. Step 4: Simplify right side
    519,698x = 201,696,311,318.16
  5. Step 5: Solve for x
    x = 201,696,311,318.16/519,698
  6. Step 6: Final answer
    x = 388,102.92

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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.