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Finding the Fourth Proportional to 627,766.40, 941,649.60 and 273,180.80

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Solution

The fourth proportional to 627,766.40, 941,649.60 and 273,180.80 is: 409,771.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,766.40 : 941,649.60 = 273,180.80 : x
  2. Step 2: Convert to fraction form
    627,766.40/941,649.60 = 273,180.80/x
  3. Step 3: Cross multiply
    627,766.40x = 941,649.60 × 273,180.80
  4. Step 4: Simplify right side
    627,766.40x = 257,240,591,047.68
  5. Step 5: Solve for x
    x = 257,240,591,047.68/627,766.40
  6. Step 6: Final answer
    x = 409,771.20

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Double scale
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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.