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Finding the Fourth Proportional to 470.67, 649.53 and 260.84

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Solution

The fourth proportional to 470.67, 649.53 and 260.84 is: 359.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    470.67 : 649.53 = 260.84 : x
  2. Step 2: Convert to fraction form
    470.67/649.53 = 260.84/x
  3. Step 3: Cross multiply
    470.67x = 649.53 × 260.84
  4. Step 4: Simplify right side
    470.67x = 169,425.03
  5. Step 5: Solve for x
    x = 169,425.03/470.67
  6. Step 6: Final answer
    x = 359.96

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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.