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Finding the Fourth Proportional to 1,627.42, 2,439.84 and 587.26

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Solution

The fourth proportional to 1,627.42, 2,439.84 and 587.26 is: 880.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.42 : 2,439.84 = 587.26 : x
  2. Step 2: Convert to fraction form
    1,627.42/2,439.84 = 587.26/x
  3. Step 3: Cross multiply
    1,627.42x = 2,439.84 × 587.26
  4. Step 4: Simplify right side
    1,627.42x = 1,432,820.44
  5. Step 5: Solve for x
    x = 1,432,820.44/1,627.42
  6. Step 6: Final answer
    x = 880.42

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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.