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Finding the Fourth Proportional to 933.56, 1,400.01 and 275.24

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Solution

The fourth proportional to 933.56, 1,400.01 and 275.24 is: 412.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    933.56 : 1,400.01 = 275.24 : x
  2. Step 2: Convert to fraction form
    933.56/1,400.01 = 275.24/x
  3. Step 3: Cross multiply
    933.56x = 1,400.01 × 275.24
  4. Step 4: Simplify right side
    933.56x = 385,338.75
  5. Step 5: Solve for x
    x = 385,338.75/933.56
  6. Step 6: Final answer
    x = 412.76

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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.