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Finding the Third Proportional to 318,619,334 and 492,078,891

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Solution

The third proportional to 318,619,334 and 492,078,891 is: 759,971,568.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,619,334 : 492,078,891 = 492,078,891 : x
  2. Step 2: Convert to fraction form
    318,619,334/492,078,891 = 492,078,891/x
  3. Step 3: Cross multiply
    318,619,334x = 492,078,891 × 492,078,891
  4. Step 4: Simplify right side
    318,619,334x = 242,141,634,967,789,888
  5. Step 5: Solve for x
    x = 242,141,634,967,789,888/318,619,334
  6. Step 6: Final answer
    x = 759,971,568.35

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.