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Finding the Fourth Proportional to 328,537.40, 492,822.30 and 171,073.40

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Solution

The fourth proportional to 328,537.40, 492,822.30 and 171,073.40 is: 256,618.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,537.40 : 492,822.30 = 171,073.40 : x
  2. Step 2: Convert to fraction form
    328,537.40/492,822.30 = 171,073.40/x
  3. Step 3: Cross multiply
    328,537.40x = 492,822.30 × 171,073.40
  4. Step 4: Simplify right side
    328,537.40x = 84,308,786,456.82
  5. Step 5: Solve for x
    x = 84,308,786,456.82/328,537.40
  6. Step 6: Final answer
    x = 256,618.54

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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.