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Finding the Fourth Proportional to 944.16, 1,416.45 and 396.03

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Solution

The fourth proportional to 944.16, 1,416.45 and 396.03 is: 594.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.16 : 1,416.45 = 396.03 : x
  2. Step 2: Convert to fraction form
    944.16/1,416.45 = 396.03/x
  3. Step 3: Cross multiply
    944.16x = 1,416.45 × 396.03
  4. Step 4: Simplify right side
    944.16x = 560,954.71
  5. Step 5: Solve for x
    x = 560,954.71/944.16
  6. Step 6: Final answer
    x = 594.13

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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.