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Finding the Fourth Proportional to 323,017.25, 445,806.11 and 185,250.15

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Solution

The fourth proportional to 323,017.25, 445,806.11 and 185,250.15 is: 255,669.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,017.25 : 445,806.11 = 185,250.15 : x
  2. Step 2: Convert to fraction form
    323,017.25/445,806.11 = 185,250.15/x
  3. Step 3: Cross multiply
    323,017.25x = 445,806.11 × 185,250.15
  4. Step 4: Simplify right side
    323,017.25x = 82,585,649,211.54
  5. Step 5: Solve for x
    x = 82,585,649,211.54/323,017.25
  6. Step 6: Final answer
    x = 255,669.47

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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.