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Finding the Fourth Proportional to 577,327.20, 866,010.60 and 177,964.80

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Solution

The fourth proportional to 577,327.20, 866,010.60 and 177,964.80 is: 266,953.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,327.20 : 866,010.60 = 177,964.80 : x
  2. Step 2: Convert to fraction form
    577,327.20/866,010.60 = 177,964.80/x
  3. Step 3: Cross multiply
    577,327.20x = 866,010.60 × 177,964.80
  4. Step 4: Simplify right side
    577,327.20x = 154,119,403,226.88
  5. Step 5: Solve for x
    x = 154,119,403,226.88/577,327.20
  6. Step 6: Final answer
    x = 266,953.30

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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.