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Finding the Fourth Proportional to 326,229.88, 450,191.80 and 190,342.84

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Solution

The fourth proportional to 326,229.88, 450,191.80 and 190,342.84 is: 262,669.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,229.88 : 450,191.80 = 190,342.84 : x
  2. Step 2: Convert to fraction form
    326,229.88/450,191.80 = 190,342.84/x
  3. Step 3: Cross multiply
    326,229.88x = 450,191.80 × 190,342.84
  4. Step 4: Simplify right side
    326,229.88x = 85,690,785,756.71
  5. Step 5: Solve for x
    x = 85,690,785,756.71/326,229.88
  6. Step 6: Final answer
    x = 262,669.95

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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.