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Finding the Fourth Proportional to 574,174.12, 792,395.22 and 319,525.30

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Solution

The fourth proportional to 574,174.12, 792,395.22 and 319,525.30 is: 440,964.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,174.12 : 792,395.22 = 319,525.30 : x
  2. Step 2: Convert to fraction form
    574,174.12/792,395.22 = 319,525.30/x
  3. Step 3: Cross multiply
    574,174.12x = 792,395.22 × 319,525.30
  4. Step 4: Simplify right side
    574,174.12x = 253,190,318,791.44
  5. Step 5: Solve for x
    x = 253,190,318,791.44/574,174.12
  6. Step 6: Final answer
    x = 440,964.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.