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Finding the Fourth Proportional to 476.99, 715.36 and 168.75

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Solution

The fourth proportional to 476.99, 715.36 and 168.75 is: 253.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.99 : 715.36 = 168.75 : x
  2. Step 2: Convert to fraction form
    476.99/715.36 = 168.75/x
  3. Step 3: Cross multiply
    476.99x = 715.36 × 168.75
  4. Step 4: Simplify right side
    476.99x = 120,717
  5. Step 5: Solve for x
    x = 120,717/476.99
  6. Step 6: Final answer
    x = 253.08

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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.