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Finding the Fourth Proportional to 526,398.51, 789,663.39 and 171,317.19

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Solution

The fourth proportional to 526,398.51, 789,663.39 and 171,317.19 is: 256,997.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,398.51 : 789,663.39 = 171,317.19 : x
  2. Step 2: Convert to fraction form
    526,398.51/789,663.39 = 171,317.19/x
  3. Step 3: Cross multiply
    526,398.51x = 789,663.39 × 171,317.19
  4. Step 4: Simplify right side
    526,398.51x = 135,282,913,020.67
  5. Step 5: Solve for x
    x = 135,282,913,020.67/526,398.51
  6. Step 6: Final answer
    x = 256,997.14

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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.