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Finding the Fourth Proportional to 933.36, 1,400.66 and 356.24

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Solution

The fourth proportional to 933.36, 1,400.66 and 356.24 is: 534.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    933.36 : 1,400.66 = 356.24 : x
  2. Step 2: Convert to fraction form
    933.36/1,400.66 = 356.24/x
  3. Step 3: Cross multiply
    933.36x = 1,400.66 × 356.24
  4. Step 4: Simplify right side
    933.36x = 498,971.12
  5. Step 5: Solve for x
    x = 498,971.12/933.36
  6. Step 6: Final answer
    x = 534.60

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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.