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Finding the Third Proportional to 197,775,886 and 290,948,104

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Solution

The third proportional to 197,775,886 and 290,948,104 is: 428,013,753.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,775,886 : 290,948,104 = 290,948,104 : x
  2. Step 2: Convert to fraction form
    197,775,886/290,948,104 = 290,948,104/x
  3. Step 3: Cross multiply
    197,775,886x = 290,948,104 × 290,948,104
  4. Step 4: Simplify right side
    197,775,886x = 84,650,799,221,194,816
  5. Step 5: Solve for x
    x = 84,650,799,221,194,816/197,775,886
  6. Step 6: Final answer
    x = 428,013,753.01

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.