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Finding the Fourth Proportional to 526,363.12, 789,462.31 and 171,374.75

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Solution

The fourth proportional to 526,363.12, 789,462.31 and 171,374.75 is: 257,035.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,363.12 : 789,462.31 = 171,374.75 : x
  2. Step 2: Convert to fraction form
    526,363.12/789,462.31 = 171,374.75/x
  3. Step 3: Cross multiply
    526,363.12x = 789,462.31 × 171,374.75
  4. Step 4: Simplify right side
    526,363.12x = 135,293,902,063.36
  5. Step 5: Solve for x
    x = 135,293,902,063.36/526,363.12
  6. Step 6: Final answer
    x = 257,035.30

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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.