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Finding the Fourth Proportional to 2,407.84, 3,611.96 and 676.46

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Solution

The fourth proportional to 2,407.84, 3,611.96 and 676.46 is: 1,014.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,407.84 : 3,611.96 = 676.46 : x
  2. Step 2: Convert to fraction form
    2,407.84/3,611.96 = 676.46/x
  3. Step 3: Cross multiply
    2,407.84x = 3,611.96 × 676.46
  4. Step 4: Simplify right side
    2,407.84x = 2,443,346.46
  5. Step 5: Solve for x
    x = 2,443,346.46/2,407.84
  6. Step 6: Final answer
    x = 1,014.75

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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.