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Finding the Fourth Proportional to 1,084.76, 1,627.14 and 263.03

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Solution

The fourth proportional to 1,084.76, 1,627.14 and 263.03 is: 394.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,084.76 : 1,627.14 = 263.03 : x
  2. Step 2: Convert to fraction form
    1,084.76/1,627.14 = 263.03/x
  3. Step 3: Cross multiply
    1,084.76x = 1,627.14 × 263.03
  4. Step 4: Simplify right side
    1,084.76x = 427,982.57
  5. Step 5: Solve for x
    x = 427,982.57/1,084.76
  6. Step 6: Final answer
    x = 394.54

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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.