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Finding the Fourth Proportional to 515,940.44, 773,557.39 and 262,730.79

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Solution

The fourth proportional to 515,940.44, 773,557.39 and 262,730.79 is: 393,916.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,940.44 : 773,557.39 = 262,730.79 : x
  2. Step 2: Convert to fraction form
    515,940.44/773,557.39 = 262,730.79/x
  3. Step 3: Cross multiply
    515,940.44x = 773,557.39 × 262,730.79
  4. Step 4: Simplify right side
    515,940.44x = 203,237,344,513.45
  5. Step 5: Solve for x
    x = 203,237,344,513.45/515,940.44
  6. Step 6: Final answer
    x = 393,916.29

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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.