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Finding the Fourth Proportional to 594.57, 820.44 and 345.90

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Solution

The fourth proportional to 594.57, 820.44 and 345.90 is: 477.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    594.57 : 820.44 = 345.90 : x
  2. Step 2: Convert to fraction form
    594.57/820.44 = 345.90/x
  3. Step 3: Cross multiply
    594.57x = 820.44 × 345.90
  4. Step 4: Simplify right side
    594.57x = 283,790.84
  5. Step 5: Solve for x
    x = 283,790.84/594.57
  6. Step 6: Final answer
    x = 477.30

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