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Finding the Fourth Proportional to 496,572,445.52, 685,269,978.90 and 276,555,871.52

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Solution

The fourth proportional to 496,572,445.52, 685,269,978.90 and 276,555,871.52 is: 381,647,104.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,572,445.52 : 685,269,978.90 = 276,555,871.52 : x
  2. Step 2: Convert to fraction form
    496,572,445.52/685,269,978.90 = 276,555,871.52/x
  3. Step 3: Cross multiply
    496,572,445.52x = 685,269,978.90 × 276,555,871.52
  4. Step 4: Simplify right side
    496,572,445.52x = 189,515,436,241,181,504
  5. Step 5: Solve for x
    x = 189,515,436,241,181,504/496,572,445.52
  6. Step 6: Final answer
    x = 381,647,104.97

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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.