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Finding the Fourth Proportional to 405.24, 606.81 and 295.10

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Solution

The fourth proportional to 405.24, 606.81 and 295.10 is: 441.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    405.24 : 606.81 = 295.10 : x
  2. Step 2: Convert to fraction form
    405.24/606.81 = 295.10/x
  3. Step 3: Cross multiply
    405.24x = 606.81 × 295.10
  4. Step 4: Simplify right side
    405.24x = 179,069.63
  5. Step 5: Solve for x
    x = 179,069.63/405.24
  6. Step 6: Final answer
    x = 441.89

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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.