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Finding the Fourth Proportional to 374,896.55, 517,190.37 and 238,856.65

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Solution

The fourth proportional to 374,896.55, 517,190.37 and 238,856.65 is: 329,515.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,896.55 : 517,190.37 = 238,856.65 : x
  2. Step 2: Convert to fraction form
    374,896.55/517,190.37 = 238,856.65/x
  3. Step 3: Cross multiply
    374,896.55x = 517,190.37 × 238,856.65
  4. Step 4: Simplify right side
    374,896.55x = 123,534,357,001.77
  5. Step 5: Solve for x
    x = 123,534,357,001.77/374,896.55
  6. Step 6: Final answer
    x = 329,515.85

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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.