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Finding the Fourth Proportional to 574,589.72, 861,566.09 and 266,505.66

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Solution

The fourth proportional to 574,589.72, 861,566.09 and 266,505.66 is: 399,610.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,589.72 : 861,566.09 = 266,505.66 : x
  2. Step 2: Convert to fraction form
    574,589.72/861,566.09 = 266,505.66/x
  3. Step 3: Cross multiply
    574,589.72x = 861,566.09 × 266,505.66
  4. Step 4: Simplify right side
    574,589.72x = 229,612,240,115.33
  5. Step 5: Solve for x
    x = 229,612,240,115.33/574,589.72
  6. Step 6: Final answer
    x = 399,610.77

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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.