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Finding the Fourth Proportional to 519,399.38, 716,783.22 and 325,815.26

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Solution

The fourth proportional to 519,399.38, 716,783.22 and 325,815.26 is: 449,632.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,399.38 : 716,783.22 = 325,815.26 : x
  2. Step 2: Convert to fraction form
    519,399.38/716,783.22 = 325,815.26/x
  3. Step 3: Cross multiply
    519,399.38x = 716,783.22 × 325,815.26
  4. Step 4: Simplify right side
    519,399.38x = 233,538,907,604.02
  5. Step 5: Solve for x
    x = 233,538,907,604.02/519,399.38
  6. Step 6: Final answer
    x = 449,632.63

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Similar ratio
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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.