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Finding the Fourth Proportional to 326,340.92, 450,378.98 and 190,418.66

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Solution

The fourth proportional to 326,340.92, 450,378.98 and 190,418.66 is: 262,794.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,340.92 : 450,378.98 = 190,418.66 : x
  2. Step 2: Convert to fraction form
    326,340.92/450,378.98 = 190,418.66/x
  3. Step 3: Cross multiply
    326,340.92x = 450,378.98 × 190,418.66
  4. Step 4: Simplify right side
    326,340.92x = 85,760,558,659.78
  5. Step 5: Solve for x
    x = 85,760,558,659.78/326,340.92
  6. Step 6: Final answer
    x = 262,794.38

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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.