Home / 853,096.40-1,280,086.20-348,027.60

Finding the Fourth Proportional to 853,096.40, 1,280,086.20 and 348,027.60

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Solution

The fourth proportional to 853,096.40, 1,280,086.20 and 348,027.60 is: 522,221.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,096.40 : 1,280,086.20 = 348,027.60 : x
  2. Step 2: Convert to fraction form
    853,096.40/1,280,086.20 = 348,027.60/x
  3. Step 3: Cross multiply
    853,096.40x = 1,280,086.20 × 348,027.60
  4. Step 4: Simplify right side
    853,096.40x = 445,505,327,979.12
  5. Step 5: Solve for x
    x = 445,505,327,979.12/853,096.40
  6. Step 6: Final answer
    x = 522,221.55

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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.