Home / 605,090.20-907,635.30-206,181.40

Finding the Fourth Proportional to 605,090.20, 907,635.30 and 206,181.40

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Solution

The fourth proportional to 605,090.20, 907,635.30 and 206,181.40 is: 309,272.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,090.20 : 907,635.30 = 206,181.40 : x
  2. Step 2: Convert to fraction form
    605,090.20/907,635.30 = 206,181.40/x
  3. Step 3: Cross multiply
    605,090.20x = 907,635.30 × 206,181.40
  4. Step 4: Simplify right side
    605,090.20x = 187,137,516,843.42
  5. Step 5: Solve for x
    x = 187,137,516,843.42/605,090.20
  6. Step 6: Final answer
    x = 309,272.10

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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.