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Finding the Fourth Proportional to 484,761.53, 725,775.21 and 256,540.22

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Solution

The fourth proportional to 484,761.53, 725,775.21 and 256,540.22 is: 384,086.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,761.53 : 725,775.21 = 256,540.22 : x
  2. Step 2: Convert to fraction form
    484,761.53/725,775.21 = 256,540.22/x
  3. Step 3: Cross multiply
    484,761.53x = 725,775.21 × 256,540.22
  4. Step 4: Simplify right side
    484,761.53x = 186,190,531,136.73
  5. Step 5: Solve for x
    x = 186,190,531,136.73/484,761.53
  6. Step 6: Final answer
    x = 384,086.85

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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.