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Finding the Fourth Proportional to 574,879.40, 862,319.10 and 531,576.80

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Solution

The fourth proportional to 574,879.40, 862,319.10 and 531,576.80 is: 797,365.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,879.40 : 862,319.10 = 531,576.80 : x
  2. Step 2: Convert to fraction form
    574,879.40/862,319.10 = 531,576.80/x
  3. Step 3: Cross multiply
    574,879.40x = 862,319.10 × 531,576.80
  4. Step 4: Simplify right side
    574,879.40x = 458,388,827,756.88
  5. Step 5: Solve for x
    x = 458,388,827,756.88/574,879.40
  6. Step 6: Final answer
    x = 797,365.20

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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.