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Finding the Fourth Proportional to 1,093.08, 1,641.60 and 683.02

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Solution

The fourth proportional to 1,093.08, 1,641.60 and 683.02 is: 1,025.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.08 : 1,641.60 = 683.02 : x
  2. Step 2: Convert to fraction form
    1,093.08/1,641.60 = 683.02/x
  3. Step 3: Cross multiply
    1,093.08x = 1,641.60 × 683.02
  4. Step 4: Simplify right side
    1,093.08x = 1,121,247.68
  5. Step 5: Solve for x
    x = 1,121,247.68/1,093.08
  6. Step 6: Final answer
    x = 1,025.77

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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.