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Finding the Fourth Proportional to 475,912.86, 656,759.75 and 261,053.42

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Solution

The fourth proportional to 475,912.86, 656,759.75 and 261,053.42 is: 360,253.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,912.86 : 656,759.75 = 261,053.42 : x
  2. Step 2: Convert to fraction form
    475,912.86/656,759.75 = 261,053.42/x
  3. Step 3: Cross multiply
    475,912.86x = 656,759.75 × 261,053.42
  4. Step 4: Simplify right side
    475,912.86x = 171,449,378,855.85
  5. Step 5: Solve for x
    x = 171,449,378,855.85/475,912.86
  6. Step 6: Final answer
    x = 360,253.72

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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.