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Finding the Fourth Proportional to 573.15, 790.96 and 352.22

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Solution

The fourth proportional to 573.15, 790.96 and 352.22 is: 486.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.15 : 790.96 = 352.22 : x
  2. Step 2: Convert to fraction form
    573.15/790.96 = 352.22/x
  3. Step 3: Cross multiply
    573.15x = 790.96 × 352.22
  4. Step 4: Simplify right side
    573.15x = 278,591.93
  5. Step 5: Solve for x
    x = 278,591.93/573.15
  6. Step 6: Final answer
    x = 486.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.