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Finding the Fourth Proportional to 516,281.99, 774,156.83 and 231,728.60

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Solution

The fourth proportional to 516,281.99, 774,156.83 and 231,728.60 is: 347,473.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,281.99 : 774,156.83 = 231,728.60 : x
  2. Step 2: Convert to fraction form
    516,281.99/774,156.83 = 231,728.60/x
  3. Step 3: Cross multiply
    516,281.99x = 774,156.83 × 231,728.60
  4. Step 4: Simplify right side
    516,281.99x = 179,394,278,396.34
  5. Step 5: Solve for x
    x = 179,394,278,396.34/516,281.99
  6. Step 6: Final answer
    x = 347,473.44

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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.