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Finding the Fourth Proportional to 393,803.20, 591,142.20 and 244,212.40

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Solution

The fourth proportional to 393,803.20, 591,142.20 and 244,212.40 is: 366,589.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,803.20 : 591,142.20 = 244,212.40 : x
  2. Step 2: Convert to fraction form
    393,803.20/591,142.20 = 244,212.40/x
  3. Step 3: Cross multiply
    393,803.20x = 591,142.20 × 244,212.40
  4. Step 4: Simplify right side
    393,803.20x = 144,364,255,403.28
  5. Step 5: Solve for x
    x = 144,364,255,403.28/393,803.20
  6. Step 6: Final answer
    x = 366,589.85

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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.