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Finding the Fourth Proportional to 322,000.40, 482,611.80 and 164,147.60

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Solution

The fourth proportional to 322,000.40, 482,611.80 and 164,147.60 is: 246,023.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,000.40 : 482,611.80 = 164,147.60 : x
  2. Step 2: Convert to fraction form
    322,000.40/482,611.80 = 164,147.60/x
  3. Step 3: Cross multiply
    322,000.40x = 482,611.80 × 164,147.60
  4. Step 4: Simplify right side
    322,000.40x = 79,219,568,701.68
  5. Step 5: Solve for x
    x = 79,219,568,701.68/322,000.40
  6. Step 6: Final answer
    x = 246,023.20

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1.5x scale

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.