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Finding the Fourth Proportional to 423.60, 584.70 and 325.24

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Solution

The fourth proportional to 423.60, 584.70 and 325.24 is: 448.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.60 : 584.70 = 325.24 : x
  2. Step 2: Convert to fraction form
    423.60/584.70 = 325.24/x
  3. Step 3: Cross multiply
    423.60x = 584.70 × 325.24
  4. Step 4: Simplify right side
    423.60x = 190,167.83
  5. Step 5: Solve for x
    x = 190,167.83/423.60
  6. Step 6: Final answer
    x = 448.93

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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.