Home / 853,402.60-1,280,099.28-347,961.62

Finding the Fourth Proportional to 853,402.60, 1,280,099.28 and 347,961.62

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Solution

The fourth proportional to 853,402.60, 1,280,099.28 and 347,961.62 is: 521,940.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,402.60 : 1,280,099.28 = 347,961.62 : x
  2. Step 2: Convert to fraction form
    853,402.60/1,280,099.28 = 347,961.62/x
  3. Step 3: Cross multiply
    853,402.60x = 1,280,099.28 × 347,961.62
  4. Step 4: Simplify right side
    853,402.60x = 445,425,419,229.63
  5. Step 5: Solve for x
    x = 445,425,419,229.63/853,402.60
  6. Step 6: Final answer
    x = 521,940.55

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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.