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Finding the Fourth Proportional to 786,661.92, 1,179,999.70 and 254,183

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Solution

The fourth proportional to 786,661.92, 1,179,999.70 and 254,183 is: 381,276.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,661.92 : 1,179,999.70 = 254,183 : x
  2. Step 2: Convert to fraction form
    786,661.92/1,179,999.70 = 254,183/x
  3. Step 3: Cross multiply
    786,661.92x = 1,179,999.70 × 254,183
  4. Step 4: Simplify right side
    786,661.92x = 299,935,863,745.10
  5. Step 5: Solve for x
    x = 299,935,863,745.10/786,661.92
  6. Step 6: Final answer
    x = 381,276.70

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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.