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Finding the Fourth Proportional to 313,192.15, 469,635.13 and 218,467.71

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Solution

The fourth proportional to 313,192.15, 469,635.13 and 218,467.71 is: 327,594.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,192.15 : 469,635.13 = 218,467.71 : x
  2. Step 2: Convert to fraction form
    313,192.15/469,635.13 = 218,467.71/x
  3. Step 3: Cross multiply
    313,192.15x = 469,635.13 × 218,467.71
  4. Step 4: Simplify right side
    313,192.15x = 102,600,111,659.74
  5. Step 5: Solve for x
    x = 102,600,111,659.74/313,192.15
  6. Step 6: Final answer
    x = 327,594.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.