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Finding the Third Proportional to 570.94 and 816.38

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Solution

The third proportional to 570.94 and 816.38 is: 1,167.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    570.94 : 816.38 = 816.38 : x
  2. Step 2: Convert to fraction form
    570.94/816.38 = 816.38/x
  3. Step 3: Cross multiply
    570.94x = 816.38 × 816.38
  4. Step 4: Simplify right side
    570.94x = 666,468.14
  5. Step 5: Solve for x
    x = 666,468.14/570.94
  6. Step 6: Final answer
    x = 1,167.32

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.