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Finding the Fourth Proportional to 422,518.75, 633,351.65 and 264,857.92

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Solution

The fourth proportional to 422,518.75, 633,351.65 and 264,857.92 is: 397,019.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,518.75 : 633,351.65 = 264,857.92 : x
  2. Step 2: Convert to fraction form
    422,518.75/633,351.65 = 264,857.92/x
  3. Step 3: Cross multiply
    422,518.75x = 633,351.65 × 264,857.92
  4. Step 4: Simplify right side
    422,518.75x = 167,748,198,142.96
  5. Step 5: Solve for x
    x = 167,748,198,142.96/422,518.75
  6. Step 6: Final answer
    x = 397,019.54

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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.