Home / 853,458.53-1,280,189.61-347,882.45

Finding the Fourth Proportional to 853,458.53, 1,280,189.61 and 347,882.45

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Solution

The fourth proportional to 853,458.53, 1,280,189.61 and 347,882.45 is: 521,824.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,458.53 : 1,280,189.61 = 347,882.45 : x
  2. Step 2: Convert to fraction form
    853,458.53/1,280,189.61 = 347,882.45/x
  3. Step 3: Cross multiply
    853,458.53x = 1,280,189.61 × 347,882.45
  4. Step 4: Simplify right side
    853,458.53x = 445,355,491,590.40
  5. Step 5: Solve for x
    x = 445,355,491,590.40/853,458.53
  6. Step 6: Final answer
    x = 521,824.41

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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.