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Finding the Fourth Proportional to 482.88, 666 and 444

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Solution

The fourth proportional to 482.88, 666 and 444 is: 612.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.88 : 666 = 444 : x
  2. Step 2: Convert to fraction form
    482.88/666 = 444/x
  3. Step 3: Cross multiply
    482.88x = 666 × 444
  4. Step 4: Simplify right side
    482.88x = 295,704
  5. Step 5: Solve for x
    x = 295,704/482.88
  6. Step 6: Final answer
    x = 612.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.