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Finding the Fourth Proportional to 946.44, 1,418.36 and 483.24

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Solution

The fourth proportional to 946.44, 1,418.36 and 483.24 is: 724.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    946.44 : 1,418.36 = 483.24 : x
  2. Step 2: Convert to fraction form
    946.44/1,418.36 = 483.24/x
  3. Step 3: Cross multiply
    946.44x = 1,418.36 × 483.24
  4. Step 4: Simplify right side
    946.44x = 685,413.00
  5. Step 5: Solve for x
    x = 685,413.00/946.44
  6. Step 6: Final answer
    x = 724.20

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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.