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Finding the Fourth Proportional to 554,188.88, 764,780.25 and 299,540.06

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Solution

The fourth proportional to 554,188.88, 764,780.25 and 299,540.06 is: 413,365.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,188.88 : 764,780.25 = 299,540.06 : x
  2. Step 2: Convert to fraction form
    554,188.88/764,780.25 = 299,540.06/x
  3. Step 3: Cross multiply
    554,188.88x = 764,780.25 × 299,540.06
  4. Step 4: Simplify right side
    554,188.88x = 229,082,321,971.82
  5. Step 5: Solve for x
    x = 229,082,321,971.82/554,188.88
  6. Step 6: Final answer
    x = 413,365.06

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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.