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Finding the Fourth Proportional to 1,608.74, 2,411.44 and 683.52

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Solution

The fourth proportional to 1,608.74, 2,411.44 and 683.52 is: 1,024.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.74 : 2,411.44 = 683.52 : x
  2. Step 2: Convert to fraction form
    1,608.74/2,411.44 = 683.52/x
  3. Step 3: Cross multiply
    1,608.74x = 2,411.44 × 683.52
  4. Step 4: Simplify right side
    1,608.74x = 1,648,267.47
  5. Step 5: Solve for x
    x = 1,648,267.47/1,608.74
  6. Step 6: Final answer
    x = 1,024.57

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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.