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Finding the Third Proportional to 197,445.50 and 288,763

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Solution

The third proportional to 197,445.50 and 288,763 is: 422,314.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,445.50 : 288,763 = 288,763 : x
  2. Step 2: Convert to fraction form
    197,445.50/288,763 = 288,763/x
  3. Step 3: Cross multiply
    197,445.50x = 288,763 × 288,763
  4. Step 4: Simplify right side
    197,445.50x = 83,384,070,169
  5. Step 5: Solve for x
    x = 83,384,070,169/197,445.50
  6. Step 6: Final answer
    x = 422,314.36

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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.