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Finding the Fourth Proportional to 392,604.06, 587,743.55 and 242,361.26

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Solution

The fourth proportional to 392,604.06, 587,743.55 and 242,361.26 is: 362,824.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,604.06 : 587,743.55 = 242,361.26 : x
  2. Step 2: Convert to fraction form
    392,604.06/587,743.55 = 242,361.26/x
  3. Step 3: Cross multiply
    392,604.06x = 587,743.55 × 242,361.26
  4. Step 4: Simplify right side
    392,604.06x = 142,446,267,334.87
  5. Step 5: Solve for x
    x = 142,446,267,334.87/392,604.06
  6. Step 6: Final answer
    x = 362,824.23

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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.