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Finding the Fourth Proportional to 351,616.91, 485,233.67 and 190,471.97

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Solution

The fourth proportional to 351,616.91, 485,233.67 and 190,471.97 is: 262,852.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,616.91 : 485,233.67 = 190,471.97 : x
  2. Step 2: Convert to fraction form
    351,616.91/485,233.67 = 190,471.97/x
  3. Step 3: Cross multiply
    351,616.91x = 485,233.67 × 190,471.97
  4. Step 4: Simplify right side
    351,616.91x = 92,423,409,656.70
  5. Step 5: Solve for x
    x = 92,423,409,656.70/351,616.91
  6. Step 6: Final answer
    x = 262,852.58

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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.