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Finding the Fourth Proportional to 322,822.80, 484,234.20 and 216,534.60

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Solution

The fourth proportional to 322,822.80, 484,234.20 and 216,534.60 is: 324,801.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,822.80 : 484,234.20 = 216,534.60 : x
  2. Step 2: Convert to fraction form
    322,822.80/484,234.20 = 216,534.60/x
  3. Step 3: Cross multiply
    322,822.80x = 484,234.20 × 216,534.60
  4. Step 4: Simplify right side
    322,822.80x = 104,853,458,803.32
  5. Step 5: Solve for x
    x = 104,853,458,803.32/322,822.80
  6. Step 6: Final answer
    x = 324,801.90

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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.