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Finding the Fourth Proportional to 515,854.44, 773,665.83 and 216,672.84

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Solution

The fourth proportional to 515,854.44, 773,665.83 and 216,672.84 is: 324,960.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,854.44 : 773,665.83 = 216,672.84 : x
  2. Step 2: Convert to fraction form
    515,854.44/773,665.83 = 216,672.84/x
  3. Step 3: Cross multiply
    515,854.44x = 773,665.83 × 216,672.84
  4. Step 4: Simplify right side
    515,854.44x = 167,632,372,597.06
  5. Step 5: Solve for x
    x = 167,632,372,597.06/515,854.44
  6. Step 6: Final answer
    x = 324,960.61

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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.