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Finding the Fourth Proportional to 962.92, 1,329 and 570.16

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Solution

The fourth proportional to 962.92, 1,329 and 570.16 is: 786.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.92 : 1,329 = 570.16 : x
  2. Step 2: Convert to fraction form
    962.92/1,329 = 570.16/x
  3. Step 3: Cross multiply
    962.92x = 1,329 × 570.16
  4. Step 4: Simplify right side
    962.92x = 757,742.64
  5. Step 5: Solve for x
    x = 757,742.64/962.92
  6. Step 6: Final answer
    x = 786.92

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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.