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Finding the Fourth Proportional to 431,812.40, 647,524.20 and 195,033.20

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Solution

The fourth proportional to 431,812.40, 647,524.20 and 195,033.20 is: 292,462.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,812.40 : 647,524.20 = 195,033.20 : x
  2. Step 2: Convert to fraction form
    431,812.40/647,524.20 = 195,033.20/x
  3. Step 3: Cross multiply
    431,812.40x = 647,524.20 × 195,033.20
  4. Step 4: Simplify right side
    431,812.40x = 126,288,716,803.44
  5. Step 5: Solve for x
    x = 126,288,716,803.44/431,812.40
  6. Step 6: Final answer
    x = 292,462.00

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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.