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Finding the Fourth Proportional to 2,406.63, 3,611.38 and 1,038.63

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Solution

The fourth proportional to 2,406.63, 3,611.38 and 1,038.63 is: 1,558.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,406.63 : 3,611.38 = 1,038.63 : x
  2. Step 2: Convert to fraction form
    2,406.63/3,611.38 = 1,038.63/x
  3. Step 3: Cross multiply
    2,406.63x = 3,611.38 × 1,038.63
  4. Step 4: Simplify right side
    2,406.63x = 3,750,866.96
  5. Step 5: Solve for x
    x = 3,750,866.96/2,406.63
  6. Step 6: Final answer
    x = 1,558.56

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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.