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Finding the Fourth Proportional to 703.06, 970.43 and 408.44

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Solution

The fourth proportional to 703.06, 970.43 and 408.44 is: 563.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.06 : 970.43 = 408.44 : x
  2. Step 2: Convert to fraction form
    703.06/970.43 = 408.44/x
  3. Step 3: Cross multiply
    703.06x = 970.43 × 408.44
  4. Step 4: Simplify right side
    703.06x = 396,362.81
  5. Step 5: Solve for x
    x = 396,362.81/703.06
  6. Step 6: Final answer
    x = 563.77

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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.