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Finding the Fourth Proportional to 527,659.05, 728,172.41 and 285,941.82

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Solution

The fourth proportional to 527,659.05, 728,172.41 and 285,941.82 is: 394,601.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,659.05 : 728,172.41 = 285,941.82 : x
  2. Step 2: Convert to fraction form
    527,659.05/728,172.41 = 285,941.82/x
  3. Step 3: Cross multiply
    527,659.05x = 728,172.41 × 285,941.82
  4. Step 4: Simplify right side
    527,659.05x = 208,214,942,759.48
  5. Step 5: Solve for x
    x = 208,214,942,759.48/527,659.05
  6. Step 6: Final answer
    x = 394,601.29

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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.