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Finding the Fourth Proportional to 622,685.88, 933,694.74 and 196,142.04

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Solution

The fourth proportional to 622,685.88, 933,694.74 and 196,142.04 is: 294,107.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,685.88 : 933,694.74 = 196,142.04 : x
  2. Step 2: Convert to fraction form
    622,685.88/933,694.74 = 196,142.04/x
  3. Step 3: Cross multiply
    622,685.88x = 933,694.74 × 196,142.04
  4. Step 4: Simplify right side
    622,685.88x = 183,136,791,040.87
  5. Step 5: Solve for x
    x = 183,136,791,040.87/622,685.88
  6. Step 6: Final answer
    x = 294,107.83

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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.