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Finding the Fourth Proportional to 940.44, 1,410.66 and 734.70

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Solution

The fourth proportional to 940.44, 1,410.66 and 734.70 is: 1,102.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    940.44 : 1,410.66 = 734.70 : x
  2. Step 2: Convert to fraction form
    940.44/1,410.66 = 734.70/x
  3. Step 3: Cross multiply
    940.44x = 1,410.66 × 734.70
  4. Step 4: Simplify right side
    940.44x = 1,036,411.90
  5. Step 5: Solve for x
    x = 1,036,411.90/940.44
  6. Step 6: Final answer
    x = 1,102.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.