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Finding the Fourth Proportional to 322,811.92, 445,449.18 and 186,818.92

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Solution

The fourth proportional to 322,811.92, 445,449.18 and 186,818.92 is: 257,792.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,811.92 : 445,449.18 = 186,818.92 : x
  2. Step 2: Convert to fraction form
    322,811.92/445,449.18 = 186,818.92/x
  3. Step 3: Cross multiply
    322,811.92x = 445,449.18 × 186,818.92
  4. Step 4: Simplify right side
    322,811.92x = 83,218,334,722.49
  5. Step 5: Solve for x
    x = 83,218,334,722.49/322,811.92
  6. Step 6: Final answer
    x = 257,792.01

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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.