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Finding the Fourth Proportional to 1,384.28, 2,076.46 and 562.53

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Solution

The fourth proportional to 1,384.28, 2,076.46 and 562.53 is: 843.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384.28 : 2,076.46 = 562.53 : x
  2. Step 2: Convert to fraction form
    1,384.28/2,076.46 = 562.53/x
  3. Step 3: Cross multiply
    1,384.28x = 2,076.46 × 562.53
  4. Step 4: Simplify right side
    1,384.28x = 1,168,069.64
  5. Step 5: Solve for x
    x = 1,168,069.64/1,384.28
  6. Step 6: Final answer
    x = 843.81

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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.