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Finding the Fourth Proportional to 518,016.24, 777,024.36 and 251,548.38

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Solution

The fourth proportional to 518,016.24, 777,024.36 and 251,548.38 is: 377,322.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,016.24 : 777,024.36 = 251,548.38 : x
  2. Step 2: Convert to fraction form
    518,016.24/777,024.36 = 251,548.38/x
  3. Step 3: Cross multiply
    518,016.24x = 777,024.36 × 251,548.38
  4. Step 4: Simplify right side
    518,016.24x = 195,459,218,978.54
  5. Step 5: Solve for x
    x = 195,459,218,978.54/518,016.24
  6. Step 6: Final answer
    x = 377,322.57

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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.