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Finding the Fourth Proportional to 534,016.80, 800,377.20 and 308,944.80

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Solution

The fourth proportional to 534,016.80, 800,377.20 and 308,944.80 is: 463,042.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,016.80 : 800,377.20 = 308,944.80 : x
  2. Step 2: Convert to fraction form
    534,016.80/800,377.20 = 308,944.80/x
  3. Step 3: Cross multiply
    534,016.80x = 800,377.20 × 308,944.80
  4. Step 4: Simplify right side
    534,016.80x = 247,272,373,978.56
  5. Step 5: Solve for x
    x = 247,272,373,978.56/534,016.80
  6. Step 6: Final answer
    x = 463,042.31

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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.