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Finding the Fourth Proportional to 398,600.11, 597,797.97 and 118,051.75

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Solution

The fourth proportional to 398,600.11, 597,797.97 and 118,051.75 is: 177,047.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,600.11 : 597,797.97 = 118,051.75 : x
  2. Step 2: Convert to fraction form
    398,600.11/597,797.97 = 118,051.75/x
  3. Step 3: Cross multiply
    398,600.11x = 597,797.97 × 118,051.75
  4. Step 4: Simplify right side
    398,600.11x = 70,571,096,504.95
  5. Step 5: Solve for x
    x = 70,571,096,504.95/398,600.11
  6. Step 6: Final answer
    x = 177,047.36

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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.