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Finding the Fourth Proportional to 323,020.40, 484,336.20 and 165,556.40

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Solution

The fourth proportional to 323,020.40, 484,336.20 and 165,556.40 is: 248,234.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,020.40 : 484,336.20 = 165,556.40 : x
  2. Step 2: Convert to fraction form
    323,020.40/484,336.20 = 165,556.40/x
  3. Step 3: Cross multiply
    323,020.40x = 484,336.20 × 165,556.40
  4. Step 4: Simplify right side
    323,020.40x = 80,184,957,661.68
  5. Step 5: Solve for x
    x = 80,184,957,661.68/323,020.40
  6. Step 6: Final answer
    x = 248,234.96

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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.