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Finding the Fourth Proportional to 1,083.90, 1,625.46 and 467.34

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Solution

The fourth proportional to 1,083.90, 1,625.46 and 467.34 is: 700.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,083.90 : 1,625.46 = 467.34 : x
  2. Step 2: Convert to fraction form
    1,083.90/1,625.46 = 467.34/x
  3. Step 3: Cross multiply
    1,083.90x = 1,625.46 × 467.34
  4. Step 4: Simplify right side
    1,083.90x = 759,642.48
  5. Step 5: Solve for x
    x = 759,642.48/1,083.90
  6. Step 6: Final answer
    x = 700.84

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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.