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Finding the Fourth Proportional to 571.68, 788.52 and 525.21

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Solution

The fourth proportional to 571.68, 788.52 and 525.21 is: 724.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.68 : 788.52 = 525.21 : x
  2. Step 2: Convert to fraction form
    571.68/788.52 = 525.21/x
  3. Step 3: Cross multiply
    571.68x = 788.52 × 525.21
  4. Step 4: Simplify right side
    571.68x = 414,138.59
  5. Step 5: Solve for x
    x = 414,138.59/571.68
  6. Step 6: Final answer
    x = 724.42

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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.