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Finding the Fourth Proportional to 453,743.72, 680,615.79 and 187,211.29

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Solution

The fourth proportional to 453,743.72, 680,615.79 and 187,211.29 is: 280,817.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,743.72 : 680,615.79 = 187,211.29 : x
  2. Step 2: Convert to fraction form
    453,743.72/680,615.79 = 187,211.29/x
  3. Step 3: Cross multiply
    453,743.72x = 680,615.79 × 187,211.29
  4. Step 4: Simplify right side
    453,743.72x = 127,418,958,338.73
  5. Step 5: Solve for x
    x = 127,418,958,338.73/453,743.72
  6. Step 6: Final answer
    x = 280,817.02

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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.