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Finding the Fourth Proportional to 701,035.72, 967,428.09 and 378,744.82

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Solution

The fourth proportional to 701,035.72, 967,428.09 and 378,744.82 is: 522,667.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,035.72 : 967,428.09 = 378,744.82 : x
  2. Step 2: Convert to fraction form
    701,035.72/967,428.09 = 378,744.82/x
  3. Step 3: Cross multiply
    701,035.72x = 967,428.09 × 378,744.82
  4. Step 4: Simplify right side
    701,035.72x = 366,408,377,809.99
  5. Step 5: Solve for x
    x = 366,408,377,809.99/701,035.72
  6. Step 6: Final answer
    x = 522,667.20

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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.