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Finding the Fourth Proportional to 295,864.62, 408,299.43 and 161,728.62

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Solution

The fourth proportional to 295,864.62, 408,299.43 and 161,728.62 is: 223,188.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,864.62 : 408,299.43 = 161,728.62 : x
  2. Step 2: Convert to fraction form
    295,864.62/408,299.43 = 161,728.62/x
  3. Step 3: Cross multiply
    295,864.62x = 408,299.43 × 161,728.62
  4. Step 4: Simplify right side
    295,864.62x = 66,033,703,360.69
  5. Step 5: Solve for x
    x = 66,033,703,360.69/295,864.62
  6. Step 6: Final answer
    x = 223,188.91

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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.