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Finding the Third Proportional to 648,634,890 and 1,399,306,290

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Solution

The third proportional to 648,634,890 and 1,399,306,290 is: 3,018,736,924.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,634,890 : 1,399,306,290 = 1,399,306,290 : x
  2. Step 2: Convert to fraction form
    648,634,890/1,399,306,290 = 1,399,306,290/x
  3. Step 3: Cross multiply
    648,634,890x = 1,399,306,290 × 1,399,306,290
  4. Step 4: Simplify right side
    648,634,890x = 1,958,058,093,233,564,160
  5. Step 5: Solve for x
    x = 1,958,058,093,233,564,160/648,634,890
  6. Step 6: Final answer
    x = 3,018,736,924.92

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.