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Finding the Fourth Proportional to 577,399.19, 866,043.03 and 177,932.71

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Solution

The fourth proportional to 577,399.19, 866,043.03 and 177,932.71 is: 266,881.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,399.19 : 866,043.03 = 177,932.71 : x
  2. Step 2: Convert to fraction form
    577,399.19/866,043.03 = 177,932.71/x
  3. Step 3: Cross multiply
    577,399.19x = 866,043.03 × 177,932.71
  4. Step 4: Simplify right side
    577,399.19x = 154,097,378,974.30
  5. Step 5: Solve for x
    x = 154,097,378,974.30/577,399.19
  6. Step 6: Final answer
    x = 266,881.88

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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.