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Finding the Third Proportional to 443,703 and 665,338.50

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Solution

The third proportional to 443,703 and 665,338.50 is: 997,683.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,703 : 665,338.50 = 665,338.50 : x
  2. Step 2: Convert to fraction form
    443,703/665,338.50 = 665,338.50/x
  3. Step 3: Cross multiply
    443,703x = 665,338.50 × 665,338.50
  4. Step 4: Simplify right side
    443,703x = 442,675,319,582.25
  5. Step 5: Solve for x
    x = 442,675,319,582.25/443,703
  6. Step 6: Final answer
    x = 997,683.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.