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Finding the Fourth Proportional to 351,958.92, 485,706.72 and 190,813.56

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Solution

The fourth proportional to 351,958.92, 485,706.72 and 190,813.56 is: 263,324.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,958.92 : 485,706.72 = 190,813.56 : x
  2. Step 2: Convert to fraction form
    351,958.92/485,706.72 = 190,813.56/x
  3. Step 3: Cross multiply
    351,958.92x = 485,706.72 × 190,813.56
  4. Step 4: Simplify right side
    351,958.92x = 92,679,428,359.12
  5. Step 5: Solve for x
    x = 92,679,428,359.12/351,958.92
  6. Step 6: Final answer
    x = 263,324.56

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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.