Home / 869,942.25-1,200,517.85-482,816.12

Finding the Fourth Proportional to 869,942.25, 1,200,517.85 and 482,816.12

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Solution

The fourth proportional to 869,942.25, 1,200,517.85 and 482,816.12 is: 666,284.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,942.25 : 1,200,517.85 = 482,816.12 : x
  2. Step 2: Convert to fraction form
    869,942.25/1,200,517.85 = 482,816.12/x
  3. Step 3: Cross multiply
    869,942.25x = 1,200,517.85 × 482,816.12
  4. Step 4: Simplify right side
    869,942.25x = 579,629,365,532.19
  5. Step 5: Solve for x
    x = 579,629,365,532.19/869,942.25
  6. Step 6: Final answer
    x = 666,284.88

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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.