Home / 662,961.40-994,442.10-189,662.20

Finding the Fourth Proportional to 662,961.40, 994,442.10 and 189,662.20

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Solution

The fourth proportional to 662,961.40, 994,442.10 and 189,662.20 is: 284,493.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,961.40 : 994,442.10 = 189,662.20 : x
  2. Step 2: Convert to fraction form
    662,961.40/994,442.10 = 189,662.20/x
  3. Step 3: Cross multiply
    662,961.40x = 994,442.10 × 189,662.20
  4. Step 4: Simplify right side
    662,961.40x = 188,608,076,458.62
  5. Step 5: Solve for x
    x = 188,608,076,458.62/662,961.40
  6. Step 6: Final answer
    x = 284,493.30

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Half scale
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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.