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Finding the Fourth Proportional to 408,379.10, 563,550.36 and 227,086.22

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Solution

The fourth proportional to 408,379.10, 563,550.36 and 227,086.22 is: 313,371.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,379.10 : 563,550.36 = 227,086.22 : x
  2. Step 2: Convert to fraction form
    408,379.10/563,550.36 = 227,086.22/x
  3. Step 3: Cross multiply
    408,379.10x = 563,550.36 × 227,086.22
  4. Step 4: Simplify right side
    408,379.10x = 127,974,518,214.29
  5. Step 5: Solve for x
    x = 127,974,518,214.29/408,379.10
  6. Step 6: Final answer
    x = 313,371.86

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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.