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Finding the Fourth Proportional to 574,485.18, 862,121.49 and 200,508.18

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Solution

The fourth proportional to 574,485.18, 862,121.49 and 200,508.18 is: 300,899.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,485.18 : 862,121.49 = 200,508.18 : x
  2. Step 2: Convert to fraction form
    574,485.18/862,121.49 = 200,508.18/x
  3. Step 3: Cross multiply
    574,485.18x = 862,121.49 × 200,508.18
  4. Step 4: Simplify right side
    574,485.18x = 172,862,410,898.79
  5. Step 5: Solve for x
    x = 172,862,410,898.79/574,485.18
  6. Step 6: Final answer
    x = 300,899.69

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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.