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Finding the Fourth Proportional to 644,293.82, 966,365.66 and 171,015.96

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Solution

The fourth proportional to 644,293.82, 966,365.66 and 171,015.96 is: 256,504.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,293.82 : 966,365.66 = 171,015.96 : x
  2. Step 2: Convert to fraction form
    644,293.82/966,365.66 = 171,015.96/x
  3. Step 3: Cross multiply
    644,293.82x = 966,365.66 × 171,015.96
  4. Step 4: Simplify right side
    644,293.82x = 165,263,951,055.93
  5. Step 5: Solve for x
    x = 165,263,951,055.93/644,293.82
  6. Step 6: Final answer
    x = 256,504.01

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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.