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Finding the Fourth Proportional to 496,334.69, 744,379.01 and 141,351.78

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Solution

The fourth proportional to 496,334.69, 744,379.01 and 141,351.78 is: 211,992.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,334.69 : 744,379.01 = 141,351.78 : x
  2. Step 2: Convert to fraction form
    496,334.69/744,379.01 = 141,351.78/x
  3. Step 3: Cross multiply
    496,334.69x = 744,379.01 × 141,351.78
  4. Step 4: Simplify right side
    496,334.69x = 105,219,297,351.38
  5. Step 5: Solve for x
    x = 105,219,297,351.38/496,334.69
  6. Step 6: Final answer
    x = 211,992.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.