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Finding the Fourth Proportional to 319,710.96, 479,241.94 and 273,048.96

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Solution

The fourth proportional to 319,710.96, 479,241.94 and 273,048.96 is: 409,296.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,710.96 : 479,241.94 = 273,048.96 : x
  2. Step 2: Convert to fraction form
    319,710.96/479,241.94 = 273,048.96/x
  3. Step 3: Cross multiply
    319,710.96x = 479,241.94 × 273,048.96
  4. Step 4: Simplify right side
    319,710.96x = 130,856,515,025.90
  5. Step 5: Solve for x
    x = 130,856,515,025.90/319,710.96
  6. Step 6: Final answer
    x = 409,296.30

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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.