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Finding the Fourth Proportional to 577,396.88, 866,039.59 and 177,930.39

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Solution

The fourth proportional to 577,396.88, 866,039.59 and 177,930.39 is: 266,878.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,396.88 : 866,039.59 = 177,930.39 : x
  2. Step 2: Convert to fraction form
    577,396.88/866,039.59 = 177,930.39/x
  3. Step 3: Cross multiply
    577,396.88x = 866,039.59 × 177,930.39
  4. Step 4: Simplify right side
    577,396.88x = 154,094,761,559.31
  5. Step 5: Solve for x
    x = 154,094,761,559.31/577,396.88
  6. Step 6: Final answer
    x = 266,878.41

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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.