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Finding the Fourth Proportional to 534,996.73, 738,348.31 and 305,588.33

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Solution

The fourth proportional to 534,996.73, 738,348.31 and 305,588.33 is: 421,742.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,996.73 : 738,348.31 = 305,588.33 : x
  2. Step 2: Convert to fraction form
    534,996.73/738,348.31 = 305,588.33/x
  3. Step 3: Cross multiply
    534,996.73x = 738,348.31 × 305,588.33
  4. Step 4: Simplify right side
    534,996.73x = 225,630,626,470.27
  5. Step 5: Solve for x
    x = 225,630,626,470.27/534,996.73
  6. Step 6: Final answer
    x = 421,742.07

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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.