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Finding the Fourth Proportional to 1,237.61, 1,708.19 and 844.59

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Solution

The fourth proportional to 1,237.61, 1,708.19 and 844.59 is: 1,165.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237.61 : 1,708.19 = 844.59 : x
  2. Step 2: Convert to fraction form
    1,237.61/1,708.19 = 844.59/x
  3. Step 3: Cross multiply
    1,237.61x = 1,708.19 × 844.59
  4. Step 4: Simplify right side
    1,237.61x = 1,442,725.54
  5. Step 5: Solve for x
    x = 1,442,725.54/1,237.61
  6. Step 6: Final answer
    x = 1,165.73

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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.