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Finding the Fourth Proportional to 641,767.40, 962,651.10 and 168,500.60

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Solution

The fourth proportional to 641,767.40, 962,651.10 and 168,500.60 is: 252,750.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,767.40 : 962,651.10 = 168,500.60 : x
  2. Step 2: Convert to fraction form
    641,767.40/962,651.10 = 168,500.60/x
  3. Step 3: Cross multiply
    641,767.40x = 962,651.10 × 168,500.60
  4. Step 4: Simplify right side
    641,767.40x = 162,207,287,940.66
  5. Step 5: Solve for x
    x = 162,207,287,940.66/641,767.40
  6. Step 6: Final answer
    x = 252,750.90

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Similar ratio
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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.