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Finding the Fourth Proportional to 1,241.93, 1,714.47 and 1,141.86

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Solution

The fourth proportional to 1,241.93, 1,714.47 and 1,141.86 is: 1,576.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241.93 : 1,714.47 = 1,141.86 : x
  2. Step 2: Convert to fraction form
    1,241.93/1,714.47 = 1,141.86/x
  3. Step 3: Cross multiply
    1,241.93x = 1,714.47 × 1,141.86
  4. Step 4: Simplify right side
    1,241.93x = 1,957,684.71
  5. Step 5: Solve for x
    x = 1,957,684.71/1,241.93
  6. Step 6: Final answer
    x = 1,576.32

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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.