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Finding the Fourth Proportional to 699.01, 964.61 and 384.27

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Solution

The fourth proportional to 699.01, 964.61 and 384.27 is: 530.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    699.01 : 964.61 = 384.27 : x
  2. Step 2: Convert to fraction form
    699.01/964.61 = 384.27/x
  3. Step 3: Cross multiply
    699.01x = 964.61 × 384.27
  4. Step 4: Simplify right side
    699.01x = 370,671.88
  5. Step 5: Solve for x
    x = 370,671.88/699.01
  6. Step 6: Final answer
    x = 530.28

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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.