Home / 809,561.88-1,117,212.81-447,008.66

Finding the Fourth Proportional to 809,561.88, 1,117,212.81 and 447,008.66

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Solution

The fourth proportional to 809,561.88, 1,117,212.81 and 447,008.66 is: 616,881.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,561.88 : 1,117,212.81 = 447,008.66 : x
  2. Step 2: Convert to fraction form
    809,561.88/1,117,212.81 = 447,008.66/x
  3. Step 3: Cross multiply
    809,561.88x = 1,117,212.81 × 447,008.66
  4. Step 4: Simplify right side
    809,561.88x = 499,403,795,546.87
  5. Step 5: Solve for x
    x = 499,403,795,546.87/809,561.88
  6. Step 6: Final answer
    x = 616,881.56

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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.