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Finding the Third Proportional to 529.50 and 774

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Solution

The third proportional to 529.50 and 774 is: 1,131.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.50 : 774 = 774 : x
  2. Step 2: Convert to fraction form
    529.50/774 = 774/x
  3. Step 3: Cross multiply
    529.50x = 774 × 774
  4. Step 4: Simplify right side
    529.50x = 599,076
  5. Step 5: Solve for x
    x = 599,076/529.50
  6. Step 6: Final answer
    x = 1,131.40

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.