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Finding the Fourth Proportional to 935.37, 1,395.74 and 826.02

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Solution

The fourth proportional to 935.37, 1,395.74 and 826.02 is: 1,232.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    935.37 : 1,395.74 = 826.02 : x
  2. Step 2: Convert to fraction form
    935.37/1,395.74 = 826.02/x
  3. Step 3: Cross multiply
    935.37x = 1,395.74 × 826.02
  4. Step 4: Simplify right side
    935.37x = 1,152,911.22
  5. Step 5: Solve for x
    x = 1,152,911.22/935.37
  6. Step 6: Final answer
    x = 1,232.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.