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Finding the Fourth Proportional to 394,571.74, 592,299.87 and 158,079.28

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Solution

The fourth proportional to 394,571.74, 592,299.87 and 158,079.28 is: 237,296.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,571.74 : 592,299.87 = 158,079.28 : x
  2. Step 2: Convert to fraction form
    394,571.74/592,299.87 = 158,079.28/x
  3. Step 3: Cross multiply
    394,571.74x = 592,299.87 × 158,079.28
  4. Step 4: Simplify right side
    394,571.74x = 93,630,336,993.69
  5. Step 5: Solve for x
    x = 93,630,336,993.69/394,571.74
  6. Step 6: Final answer
    x = 237,296.10

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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.