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Finding the Fourth Proportional to 393,877.36, 591,008.84 and 244,077.60

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Solution

The fourth proportional to 393,877.36, 591,008.84 and 244,077.60 is: 366,235.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,877.36 : 591,008.84 = 244,077.60 : x
  2. Step 2: Convert to fraction form
    393,877.36/591,008.84 = 244,077.60/x
  3. Step 3: Cross multiply
    393,877.36x = 591,008.84 × 244,077.60
  4. Step 4: Simplify right side
    393,877.36x = 144,252,019,245.98
  5. Step 5: Solve for x
    x = 144,252,019,245.98/393,877.36
  6. Step 6: Final answer
    x = 366,235.87

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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.