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Finding the Fourth Proportional to 944.78, 1,416.63 and 366.98

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Solution

The fourth proportional to 944.78, 1,416.63 and 366.98 is: 550.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.78 : 1,416.63 = 366.98 : x
  2. Step 2: Convert to fraction form
    944.78/1,416.63 = 366.98/x
  3. Step 3: Cross multiply
    944.78x = 1,416.63 × 366.98
  4. Step 4: Simplify right side
    944.78x = 519,874.88
  5. Step 5: Solve for x
    x = 519,874.88/944.78
  6. Step 6: Final answer
    x = 550.26

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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.