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Finding the Fourth Proportional to 1,104.66, 1,657.41 and 683.01

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Solution

The fourth proportional to 1,104.66, 1,657.41 and 683.01 is: 1,024.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104.66 : 1,657.41 = 683.01 : x
  2. Step 2: Convert to fraction form
    1,104.66/1,657.41 = 683.01/x
  3. Step 3: Cross multiply
    1,104.66x = 1,657.41 × 683.01
  4. Step 4: Simplify right side
    1,104.66x = 1,132,027.60
  5. Step 5: Solve for x
    x = 1,132,027.60/1,104.66
  6. Step 6: Final answer
    x = 1,024.77

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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.