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Finding the Fourth Proportional to 577,389.69, 866,028.87 and 177,923.22

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Solution

The fourth proportional to 577,389.69, 866,028.87 and 177,923.22 is: 266,867.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,389.69 : 866,028.87 = 177,923.22 : x
  2. Step 2: Convert to fraction form
    577,389.69/866,028.87 = 177,923.22/x
  3. Step 3: Cross multiply
    577,389.69x = 866,028.87 × 177,923.22
  4. Step 4: Simplify right side
    577,389.69x = 154,086,645,163.36
  5. Step 5: Solve for x
    x = 154,086,645,163.36/577,389.69
  6. Step 6: Final answer
    x = 266,867.68

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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.