Home / 620,519.04-856,293.60-379,205.52

Finding the Fourth Proportional to 620,519.04, 856,293.60 and 379,205.52

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Solution

The fourth proportional to 620,519.04, 856,293.60 and 379,205.52 is: 523,289.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,519.04 : 856,293.60 = 379,205.52 : x
  2. Step 2: Convert to fraction form
    620,519.04/856,293.60 = 379,205.52/x
  3. Step 3: Cross multiply
    620,519.04x = 856,293.60 × 379,205.52
  4. Step 4: Simplify right side
    620,519.04x = 324,711,259,860.67
  5. Step 5: Solve for x
    x = 324,711,259,860.67/620,519.04
  6. Step 6: Final answer
    x = 523,289.76

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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.