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Finding the Fourth Proportional to 352,168.87, 485,989.60 and 191,021.60

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Solution

The fourth proportional to 352,168.87, 485,989.60 and 191,021.60 is: 263,607.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,168.87 : 485,989.60 = 191,021.60 : x
  2. Step 2: Convert to fraction form
    352,168.87/485,989.60 = 191,021.60/x
  3. Step 3: Cross multiply
    352,168.87x = 485,989.60 × 191,021.60
  4. Step 4: Simplify right side
    352,168.87x = 92,834,510,975.36
  5. Step 5: Solve for x
    x = 92,834,510,975.36/352,168.87
  6. Step 6: Final answer
    x = 263,607.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.