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Finding the Fourth Proportional to 562.22, 775.84 and 313.52

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Solution

The fourth proportional to 562.22, 775.84 and 313.52 is: 432.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.22 : 775.84 = 313.52 : x
  2. Step 2: Convert to fraction form
    562.22/775.84 = 313.52/x
  3. Step 3: Cross multiply
    562.22x = 775.84 × 313.52
  4. Step 4: Simplify right side
    562.22x = 243,241.36
  5. Step 5: Solve for x
    x = 243,241.36/562.22
  6. Step 6: Final answer
    x = 432.64

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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.