Home / 685,197.52-945,559.02-379,256.04

Finding the Fourth Proportional to 685,197.52, 945,559.02 and 379,256.04

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Solution

The fourth proportional to 685,197.52, 945,559.02 and 379,256.04 is: 523,365.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,197.52 : 945,559.02 = 379,256.04 : x
  2. Step 2: Convert to fraction form
    685,197.52/945,559.02 = 379,256.04/x
  3. Step 3: Cross multiply
    685,197.52x = 945,559.02 × 379,256.04
  4. Step 4: Simplify right side
    685,197.52x = 358,608,970,794.92
  5. Step 5: Solve for x
    x = 358,608,970,794.92/685,197.52
  6. Step 6: Final answer
    x = 523,365.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.