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Finding the Fourth Proportional to 933.36, 1,401.28 and 797.28

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Solution

The fourth proportional to 933.36, 1,401.28 and 797.28 is: 1,196.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    933.36 : 1,401.28 = 797.28 : x
  2. Step 2: Convert to fraction form
    933.36/1,401.28 = 797.28/x
  3. Step 3: Cross multiply
    933.36x = 1,401.28 × 797.28
  4. Step 4: Simplify right side
    933.36x = 1,117,212.52
  5. Step 5: Solve for x
    x = 1,117,212.52/933.36
  6. Step 6: Final answer
    x = 1,196.98

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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.