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Finding the Fourth Proportional to 324,489.22, 485,549.67 and 191,433.22

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Solution

The fourth proportional to 324,489.22, 485,549.67 and 191,433.22 is: 286,451.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,489.22 : 485,549.67 = 191,433.22 : x
  2. Step 2: Convert to fraction form
    324,489.22/485,549.67 = 191,433.22/x
  3. Step 3: Cross multiply
    324,489.22x = 485,549.67 × 191,433.22
  4. Step 4: Simplify right side
    324,489.22x = 92,950,336,798.04
  5. Step 5: Solve for x
    x = 92,950,336,798.04/324,489.22
  6. Step 6: Final answer
    x = 286,451.23

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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.