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Finding the Fourth Proportional to 352,062.79, 485,846.78 and 190,917.79

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Solution

The fourth proportional to 352,062.79, 485,846.78 and 190,917.79 is: 263,466.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,062.79 : 485,846.78 = 190,917.79 : x
  2. Step 2: Convert to fraction form
    352,062.79/485,846.78 = 190,917.79/x
  3. Step 3: Cross multiply
    352,062.79x = 485,846.78 × 190,917.79
  4. Step 4: Simplify right side
    352,062.79x = 92,756,793,168.94
  5. Step 5: Solve for x
    x = 92,756,793,168.94/352,062.79
  6. Step 6: Final answer
    x = 263,466.62

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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.