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Finding the Fourth Proportional to 326,246.68, 449,960.70 and 269,559.64

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Solution

The fourth proportional to 326,246.68, 449,960.70 and 269,559.64 is: 371,777.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,246.68 : 449,960.70 = 269,559.64 : x
  2. Step 2: Convert to fraction form
    326,246.68/449,960.70 = 269,559.64/x
  3. Step 3: Cross multiply
    326,246.68x = 449,960.70 × 269,559.64
  4. Step 4: Simplify right side
    326,246.68x = 121,291,244,306.15
  5. Step 5: Solve for x
    x = 121,291,244,306.15/326,246.68
  6. Step 6: Final answer
    x = 371,777.71

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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.