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Finding the Fourth Proportional to 1,241.83, 1,858.47 and 932.95

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Solution

The fourth proportional to 1,241.83, 1,858.47 and 932.95 is: 1,396.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241.83 : 1,858.47 = 932.95 : x
  2. Step 2: Convert to fraction form
    1,241.83/1,858.47 = 932.95/x
  3. Step 3: Cross multiply
    1,241.83x = 1,858.47 × 932.95
  4. Step 4: Simplify right side
    1,241.83x = 1,733,859.59
  5. Step 5: Solve for x
    x = 1,733,859.59/1,241.83
  6. Step 6: Final answer
    x = 1,396.21

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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.