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Finding the Fourth Proportional to 443,910.73, 666,339.94 and 191,315.87

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Solution

The fourth proportional to 443,910.73, 666,339.94 and 191,315.87 is: 287,178.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,910.73 : 666,339.94 = 191,315.87 : x
  2. Step 2: Convert to fraction form
    443,910.73/666,339.94 = 191,315.87/x
  3. Step 3: Cross multiply
    443,910.73x = 666,339.94 × 191,315.87
  4. Step 4: Simplify right side
    443,910.73x = 127,481,407,002.70
  5. Step 5: Solve for x
    x = 127,481,407,002.70/443,910.73
  6. Step 6: Final answer
    x = 287,178.03

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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.