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Finding the Fourth Proportional to 322,784.33, 445,436.33 and 220,806.34

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Solution

The fourth proportional to 322,784.33, 445,436.33 and 220,806.34 is: 304,708.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,784.33 : 445,436.33 = 220,806.34 : x
  2. Step 2: Convert to fraction form
    322,784.33/445,436.33 = 220,806.34/x
  3. Step 3: Cross multiply
    322,784.33x = 445,436.33 × 220,806.34
  4. Step 4: Simplify right side
    322,784.33x = 98,355,163,512.71
  5. Step 5: Solve for x
    x = 98,355,163,512.71/322,784.33
  6. Step 6: Final answer
    x = 304,708.61

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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.