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Finding the Fourth Proportional to 943.95, 1,416.01 and 396.29

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Solution

The fourth proportional to 943.95, 1,416.01 and 396.29 is: 594.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    943.95 : 1,416.01 = 396.29 : x
  2. Step 2: Convert to fraction form
    943.95/1,416.01 = 396.29/x
  3. Step 3: Cross multiply
    943.95x = 1,416.01 × 396.29
  4. Step 4: Simplify right side
    943.95x = 561,152.78
  5. Step 5: Solve for x
    x = 561,152.78/943.95
  6. Step 6: Final answer
    x = 594.47

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.