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Finding the Fourth Proportional to 933.24, 1,400.17 and 413.17

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Solution

The fourth proportional to 933.24, 1,400.17 and 413.17 is: 619.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    933.24 : 1,400.17 = 413.17 : x
  2. Step 2: Convert to fraction form
    933.24/1,400.17 = 413.17/x
  3. Step 3: Cross multiply
    933.24x = 1,400.17 × 413.17
  4. Step 4: Simplify right side
    933.24x = 578,504.48
  5. Step 5: Solve for x
    x = 578,504.48/933.24
  6. Step 6: Final answer
    x = 619.89

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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.