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Finding the Fourth Proportional to 1,804.41, 2,707.29 and 708.75

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Solution

The fourth proportional to 1,804.41, 2,707.29 and 708.75 is: 1,063.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,804.41 : 2,707.29 = 708.75 : x
  2. Step 2: Convert to fraction form
    1,804.41/2,707.29 = 708.75/x
  3. Step 3: Cross multiply
    1,804.41x = 2,707.29 × 708.75
  4. Step 4: Simplify right side
    1,804.41x = 1,918,791.79
  5. Step 5: Solve for x
    x = 1,918,791.79/1,804.41
  6. Step 6: Final answer
    x = 1,063.39

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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.