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Finding the Fourth Proportional to 586.94, 879.25 and 449.31

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Solution

The fourth proportional to 586.94, 879.25 and 449.31 is: 673.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.94 : 879.25 = 449.31 : x
  2. Step 2: Convert to fraction form
    586.94/879.25 = 449.31/x
  3. Step 3: Cross multiply
    586.94x = 879.25 × 449.31
  4. Step 4: Simplify right side
    586.94x = 395,056.23
  5. Step 5: Solve for x
    x = 395,056.23/586.94
  6. Step 6: Final answer
    x = 673.08

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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.