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Finding the Fourth Proportional to 839.77, 1,158.96 and 466.83

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Solution

The fourth proportional to 839.77, 1,158.96 and 466.83 is: 644.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    839.77 : 1,158.96 = 466.83 : x
  2. Step 2: Convert to fraction form
    839.77/1,158.96 = 466.83/x
  3. Step 3: Cross multiply
    839.77x = 1,158.96 × 466.83
  4. Step 4: Simplify right side
    839.77x = 541,030.33
  5. Step 5: Solve for x
    x = 541,030.33/839.77
  6. Step 6: Final answer
    x = 644.26

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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.