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Finding the Fourth Proportional to 547,794.20, 821,691.30 and 173,816.60

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Solution

The fourth proportional to 547,794.20, 821,691.30 and 173,816.60 is: 260,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,794.20 : 821,691.30 = 173,816.60 : x
  2. Step 2: Convert to fraction form
    547,794.20/821,691.30 = 173,816.60/x
  3. Step 3: Cross multiply
    547,794.20x = 821,691.30 × 173,816.60
  4. Step 4: Simplify right side
    547,794.20x = 142,823,588,015.58
  5. Step 5: Solve for x
    x = 142,823,588,015.58/547,794.20
  6. Step 6: Final answer
    x = 260,724.90

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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.