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Finding the Fourth Proportional to 443,324.70, 664,987.05 and 308,022.30

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Solution

The fourth proportional to 443,324.70, 664,987.05 and 308,022.30 is: 462,033.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,324.70 : 664,987.05 = 308,022.30 : x
  2. Step 2: Convert to fraction form
    443,324.70/664,987.05 = 308,022.30/x
  3. Step 3: Cross multiply
    443,324.70x = 664,987.05 × 308,022.30
  4. Step 4: Simplify right side
    443,324.70x = 204,830,840,611.22
  5. Step 5: Solve for x
    x = 204,830,840,611.22/443,324.70
  6. Step 6: Final answer
    x = 462,033.45

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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.