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Finding the Fourth Proportional to 574,189.37, 861,242.52 and 274,589.51

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Solution

The fourth proportional to 574,189.37, 861,242.52 and 274,589.51 is: 411,864.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,189.37 : 861,242.52 = 274,589.51 : x
  2. Step 2: Convert to fraction form
    574,189.37/861,242.52 = 274,589.51/x
  3. Step 3: Cross multiply
    574,189.37x = 861,242.52 × 274,589.51
  4. Step 4: Simplify right side
    574,189.37x = 236,488,157,251.75
  5. Step 5: Solve for x
    x = 236,488,157,251.75/574,189.37
  6. Step 6: Final answer
    x = 411,864.40

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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.