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Finding the Fourth Proportional to 479,188.41, 717,726.57 and 396,086.03

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Solution

The fourth proportional to 479,188.41, 717,726.57 and 396,086.03 is: 593,256.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,188.41 : 717,726.57 = 396,086.03 : x
  2. Step 2: Convert to fraction form
    479,188.41/717,726.57 = 396,086.03/x
  3. Step 3: Cross multiply
    479,188.41x = 717,726.57 × 396,086.03
  4. Step 4: Simplify right side
    479,188.41x = 284,281,464,148.18
  5. Step 5: Solve for x
    x = 284,281,464,148.18/479,188.41
  6. Step 6: Final answer
    x = 593,256.14

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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.