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Finding the Fourth Proportional to 379,092.33, 523,357.55 and 258,410.94

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Solution

The fourth proportional to 379,092.33, 523,357.55 and 258,410.94 is: 356,750.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,092.33 : 523,357.55 = 258,410.94 : x
  2. Step 2: Convert to fraction form
    379,092.33/523,357.55 = 258,410.94/x
  3. Step 3: Cross multiply
    379,092.33x = 523,357.55 × 258,410.94
  4. Step 4: Simplify right side
    379,092.33x = 135,241,315,159.54
  5. Step 5: Solve for x
    x = 135,241,315,159.54/379,092.33
  6. Step 6: Final answer
    x = 356,750.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.