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Finding the Fourth Proportional to 583.57, 874.59 and 258.22

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Solution

The fourth proportional to 583.57, 874.59 and 258.22 is: 386.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.57 : 874.59 = 258.22 : x
  2. Step 2: Convert to fraction form
    583.57/874.59 = 258.22/x
  3. Step 3: Cross multiply
    583.57x = 874.59 × 258.22
  4. Step 4: Simplify right side
    583.57x = 225,836.63
  5. Step 5: Solve for x
    x = 225,836.63/583.57
  6. Step 6: Final answer
    x = 386.99

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.