Home / 626,803.20-940,204.80-206,121.60

Finding the Fourth Proportional to 626,803.20, 940,204.80 and 206,121.60

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Solution

The fourth proportional to 626,803.20, 940,204.80 and 206,121.60 is: 309,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,803.20 : 940,204.80 = 206,121.60 : x
  2. Step 2: Convert to fraction form
    626,803.20/940,204.80 = 206,121.60/x
  3. Step 3: Cross multiply
    626,803.20x = 940,204.80 × 206,121.60
  4. Step 4: Simplify right side
    626,803.20x = 193,796,517,703.68
  5. Step 5: Solve for x
    x = 193,796,517,703.68/626,803.20
  6. Step 6: Final answer
    x = 309,182.40

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Similar ratio
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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.