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Finding the Fourth Proportional to 539,383.82, 809,436.57 and 223,840.70

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Solution

The fourth proportional to 539,383.82, 809,436.57 and 223,840.70 is: 335,910.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,383.82 : 809,436.57 = 223,840.70 : x
  2. Step 2: Convert to fraction form
    539,383.82/809,436.57 = 223,840.70/x
  3. Step 3: Cross multiply
    539,383.82x = 809,436.57 × 223,840.70
  4. Step 4: Simplify right side
    539,383.82x = 181,184,848,434.40
  5. Step 5: Solve for x
    x = 181,184,848,434.40/539,383.82
  6. Step 6: Final answer
    x = 335,910.80

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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.