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Finding the Fourth Proportional to 384,086.40, 576,129.60 and 244,003.20

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Solution

The fourth proportional to 384,086.40, 576,129.60 and 244,003.20 is: 366,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,086.40 : 576,129.60 = 244,003.20 : x
  2. Step 2: Convert to fraction form
    384,086.40/576,129.60 = 244,003.20/x
  3. Step 3: Cross multiply
    384,086.40x = 576,129.60 × 244,003.20
  4. Step 4: Simplify right side
    384,086.40x = 140,577,466,014.72
  5. Step 5: Solve for x
    x = 140,577,466,014.72/384,086.40
  6. Step 6: Final answer
    x = 366,004.80

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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.