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Finding the Fourth Proportional to 326,645.44, 450,806.82 and 190,712.80

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Solution

The fourth proportional to 326,645.44, 450,806.82 and 190,712.80 is: 263,204.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,645.44 : 450,806.82 = 190,712.80 : x
  2. Step 2: Convert to fraction form
    326,645.44/450,806.82 = 190,712.80/x
  3. Step 3: Cross multiply
    326,645.44x = 450,806.82 × 190,712.80
  4. Step 4: Simplify right side
    326,645.44x = 85,974,630,901.30
  5. Step 5: Solve for x
    x = 85,974,630,901.30/326,645.44
  6. Step 6: Final answer
    x = 263,204.75

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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.