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Finding the Fourth Proportional to 562.41, 770.31 and 529.20

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Solution

The fourth proportional to 562.41, 770.31 and 529.20 is: 724.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.41 : 770.31 = 529.20 : x
  2. Step 2: Convert to fraction form
    562.41/770.31 = 529.20/x
  3. Step 3: Cross multiply
    562.41x = 770.31 × 529.20
  4. Step 4: Simplify right side
    562.41x = 407,648.05
  5. Step 5: Solve for x
    x = 407,648.05/562.41
  6. Step 6: Final answer
    x = 724.82

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.