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Finding the Fourth Proportional to 607.05, 910.58 and 174.20

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Solution

The fourth proportional to 607.05, 910.58 and 174.20 is: 261.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.05 : 910.58 = 174.20 : x
  2. Step 2: Convert to fraction form
    607.05/910.58 = 174.20/x
  3. Step 3: Cross multiply
    607.05x = 910.58 × 174.20
  4. Step 4: Simplify right side
    607.05x = 158,617.61
  5. Step 5: Solve for x
    x = 158,617.61/607.05
  6. Step 6: Final answer
    x = 261.29

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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.