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Finding the Fourth Proportional to 967.94, 1,336.06 and 618.63

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Solution

The fourth proportional to 967.94, 1,336.06 and 618.63 is: 853.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.94 : 1,336.06 = 618.63 : x
  2. Step 2: Convert to fraction form
    967.94/1,336.06 = 618.63/x
  3. Step 3: Cross multiply
    967.94x = 1,336.06 × 618.63
  4. Step 4: Simplify right side
    967.94x = 826,526.80
  5. Step 5: Solve for x
    x = 826,526.80/967.94
  6. Step 6: Final answer
    x = 853.90

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