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Finding the Fourth Proportional to 326,991.20, 451,261.20 and 183,750.80

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Solution

The fourth proportional to 326,991.20, 451,261.20 and 183,750.80 is: 253,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,991.20 : 451,261.20 = 183,750.80 : x
  2. Step 2: Convert to fraction form
    326,991.20/451,261.20 = 183,750.80/x
  3. Step 3: Cross multiply
    326,991.20x = 451,261.20 × 183,750.80
  4. Step 4: Simplify right side
    326,991.20x = 82,919,606,508.96
  5. Step 5: Solve for x
    x = 82,919,606,508.96/326,991.20
  6. Step 6: Final answer
    x = 253,583.60

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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.