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Finding the Fourth Proportional to 360,936.80, 541,405.20 and 220,968.80

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Solution

The fourth proportional to 360,936.80, 541,405.20 and 220,968.80 is: 331,453.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,936.80 : 541,405.20 = 220,968.80 : x
  2. Step 2: Convert to fraction form
    360,936.80/541,405.20 = 220,968.80/x
  3. Step 3: Cross multiply
    360,936.80x = 541,405.20 × 220,968.80
  4. Step 4: Simplify right side
    360,936.80x = 119,633,657,357.76
  5. Step 5: Solve for x
    x = 119,633,657,357.76/360,936.80
  6. Step 6: Final answer
    x = 331,453.20

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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.