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Finding the Fourth Proportional to 574,138.40, 861,108.24 and 174,682.40

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Solution

The fourth proportional to 574,138.40, 861,108.24 and 174,682.40 is: 261,993.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,138.40 : 861,108.24 = 174,682.40 : x
  2. Step 2: Convert to fraction form
    574,138.40/861,108.24 = 174,682.40/x
  3. Step 3: Cross multiply
    574,138.40x = 861,108.24 × 174,682.40
  4. Step 4: Simplify right side
    574,138.40x = 150,420,454,022.98
  5. Step 5: Solve for x
    x = 150,420,454,022.98/574,138.40
  6. Step 6: Final answer
    x = 261,993.37

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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.