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Finding the Third Proportional to 198,375.19 and 426,577.50

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Solution

The third proportional to 198,375.19 and 426,577.50 is: 917,293.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,375.19 : 426,577.50 = 426,577.50 : x
  2. Step 2: Convert to fraction form
    198,375.19/426,577.50 = 426,577.50/x
  3. Step 3: Cross multiply
    198,375.19x = 426,577.50 × 426,577.50
  4. Step 4: Simplify right side
    198,375.19x = 181,968,363,506.25
  5. Step 5: Solve for x
    x = 181,968,363,506.25/198,375.19
  6. Step 6: Final answer
    x = 917,293.97

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.