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Finding the Fourth Proportional to 363,721.86, 501,951.81 and 202,576.98

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Solution

The fourth proportional to 363,721.86, 501,951.81 and 202,576.98 is: 279,564.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,721.86 : 501,951.81 = 202,576.98 : x
  2. Step 2: Convert to fraction form
    363,721.86/501,951.81 = 202,576.98/x
  3. Step 3: Cross multiply
    363,721.86x = 501,951.81 × 202,576.98
  4. Step 4: Simplify right side
    363,721.86x = 101,683,881,775.33
  5. Step 5: Solve for x
    x = 101,683,881,775.33/363,721.86
  6. Step 6: Final answer
    x = 279,564.94

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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.