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Finding the Fourth Proportional to 2,379.42, 3,288.74 and 1,788.93

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Solution

The fourth proportional to 2,379.42, 3,288.74 and 1,788.93 is: 2,472.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.42 : 3,288.74 = 1,788.93 : x
  2. Step 2: Convert to fraction form
    2,379.42/3,288.74 = 1,788.93/x
  3. Step 3: Cross multiply
    2,379.42x = 3,288.74 × 1,788.93
  4. Step 4: Simplify right side
    2,379.42x = 5,883,316.70
  5. Step 5: Solve for x
    x = 5,883,316.70/2,379.42
  6. Step 6: Final answer
    x = 2,472.58

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