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Finding the Fourth Proportional to 300,650.39, 414,904.20 and 171,586.28

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Solution

The fourth proportional to 300,650.39, 414,904.20 and 171,586.28 is: 236,792.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,650.39 : 414,904.20 = 171,586.28 : x
  2. Step 2: Convert to fraction form
    300,650.39/414,904.20 = 171,586.28/x
  3. Step 3: Cross multiply
    300,650.39x = 414,904.20 × 171,586.28
  4. Step 4: Simplify right side
    300,650.39x = 71,191,868,234.38
  5. Step 5: Solve for x
    x = 71,191,868,234.38/300,650.39
  6. Step 6: Final answer
    x = 236,792.87

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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.