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Finding the Fourth Proportional to 534,188.40, 800,116.20 and 323,458.80

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Solution

The fourth proportional to 534,188.40, 800,116.20 and 323,458.80 is: 484,481.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,188.40 : 800,116.20 = 323,458.80 : x
  2. Step 2: Convert to fraction form
    534,188.40/800,116.20 = 323,458.80/x
  3. Step 3: Cross multiply
    534,188.40x = 800,116.20 × 323,458.80
  4. Step 4: Simplify right side
    534,188.40x = 258,804,625,912.56
  5. Step 5: Solve for x
    x = 258,804,625,912.56/534,188.40
  6. Step 6: Final answer
    x = 484,481.93

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1.5x scale

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.