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Finding the Fourth Proportional to 326,996, 490,226.88 and 169,269.92

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Solution

The fourth proportional to 326,996, 490,226.88 and 169,269.92 is: 253,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,996 : 490,226.88 = 169,269.92 : x
  2. Step 2: Convert to fraction form
    326,996/490,226.88 = 169,269.92/x
  3. Step 3: Cross multiply
    326,996x = 490,226.88 × 169,269.92
  4. Step 4: Simplify right side
    326,996x = 82,980,664,759.45
  5. Step 5: Solve for x
    x = 82,980,664,759.45/326,996
  6. Step 6: Final answer
    x = 253,766.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.