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Finding the Fourth Proportional to 555.66, 832.14 and 338.58

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Solution

The fourth proportional to 555.66, 832.14 and 338.58 is: 507.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.66 : 832.14 = 338.58 : x
  2. Step 2: Convert to fraction form
    555.66/832.14 = 338.58/x
  3. Step 3: Cross multiply
    555.66x = 832.14 × 338.58
  4. Step 4: Simplify right side
    555.66x = 281,745.96
  5. Step 5: Solve for x
    x = 281,745.96/555.66
  6. Step 6: Final answer
    x = 507.05

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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.