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Finding the Fourth Proportional to 295,998.72, 408,476.16 and 161,863.68

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Solution

The fourth proportional to 295,998.72, 408,476.16 and 161,863.68 is: 223,370.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,998.72 : 408,476.16 = 161,863.68 : x
  2. Step 2: Convert to fraction form
    295,998.72/408,476.16 = 161,863.68/x
  3. Step 3: Cross multiply
    295,998.72x = 408,476.16 × 161,863.68
  4. Step 4: Simplify right side
    295,998.72x = 66,117,454,449.87
  5. Step 5: Solve for x
    x = 66,117,454,449.87/295,998.72
  6. Step 6: Final answer
    x = 223,370.74

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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.