Home / 809,402.94-1,116,979.64-446,829.78

Finding the Fourth Proportional to 809,402.94, 1,116,979.64 and 446,829.78

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Solution

The fourth proportional to 809,402.94, 1,116,979.64 and 446,829.78 is: 616,627.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,402.94 : 1,116,979.64 = 446,829.78 : x
  2. Step 2: Convert to fraction form
    809,402.94/1,116,979.64 = 446,829.78/x
  3. Step 3: Cross multiply
    809,402.94x = 1,116,979.64 × 446,829.78
  4. Step 4: Simplify right side
    809,402.94x = 499,099,764,571.53
  5. Step 5: Solve for x
    x = 499,099,764,571.53/809,402.94
  6. Step 6: Final answer
    x = 616,627.07

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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.