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Finding the Fourth Proportional to 557,331.86, 835,993.34 and 331,194.69

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Solution

The fourth proportional to 557,331.86, 835,993.34 and 331,194.69 is: 496,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,331.86 : 835,993.34 = 331,194.69 : x
  2. Step 2: Convert to fraction form
    557,331.86/835,993.34 = 331,194.69/x
  3. Step 3: Cross multiply
    557,331.86x = 835,993.34 × 331,194.69
  4. Step 4: Simplify right side
    557,331.86x = 276,876,555,911.35
  5. Step 5: Solve for x
    x = 276,876,555,911.35/557,331.86
  6. Step 6: Final answer
    x = 496,789.40

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1.5x scale

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.