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Finding the Fourth Proportional to 440,789.82, 661,192.01 and 191,471.82

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Solution

The fourth proportional to 440,789.82, 661,192.01 and 191,471.82 is: 287,210.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,789.82 : 661,192.01 = 191,471.82 : x
  2. Step 2: Convert to fraction form
    440,789.82/661,192.01 = 191,471.82/x
  3. Step 3: Cross multiply
    440,789.82x = 661,192.01 × 191,471.82
  4. Step 4: Simplify right side
    440,789.82x = 126,599,636,566.80
  5. Step 5: Solve for x
    x = 126,599,636,566.80/440,789.82
  6. Step 6: Final answer
    x = 287,210.89

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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.