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Finding the Fourth Proportional to 475,608.60, 655,992.14 and 303,644.79

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Solution

The fourth proportional to 475,608.60, 655,992.14 and 303,644.79 is: 418,807.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,608.60 : 655,992.14 = 303,644.79 : x
  2. Step 2: Convert to fraction form
    475,608.60/655,992.14 = 303,644.79/x
  3. Step 3: Cross multiply
    475,608.60x = 655,992.14 × 303,644.79
  4. Step 4: Simplify right side
    475,608.60x = 199,188,594,073.73
  5. Step 5: Solve for x
    x = 199,188,594,073.73/475,608.60
  6. Step 6: Final answer
    x = 418,807.81

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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.