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Finding the Fourth Proportional to 944.43, 1,416.43 and 294.81

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Solution

The fourth proportional to 944.43, 1,416.43 and 294.81 is: 442.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.43 : 1,416.43 = 294.81 : x
  2. Step 2: Convert to fraction form
    944.43/1,416.43 = 294.81/x
  3. Step 3: Cross multiply
    944.43x = 1,416.43 × 294.81
  4. Step 4: Simplify right side
    944.43x = 417,577.73
  5. Step 5: Solve for x
    x = 417,577.73/944.43
  6. Step 6: Final answer
    x = 442.15

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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.