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Finding the Fourth Proportional to 673.56, 929.22 and 424.80

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Solution

The fourth proportional to 673.56, 929.22 and 424.80 is: 586.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.56 : 929.22 = 424.80 : x
  2. Step 2: Convert to fraction form
    673.56/929.22 = 424.80/x
  3. Step 3: Cross multiply
    673.56x = 929.22 × 424.80
  4. Step 4: Simplify right side
    673.56x = 394,732.66
  5. Step 5: Solve for x
    x = 394,732.66/673.56
  6. Step 6: Final answer
    x = 586.04

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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.