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Finding the Third Proportional to 191,918,940 and 417,914,040

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Solution

The third proportional to 191,918,940 and 417,914,040 is: 910,030,791.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,918,940 : 417,914,040 = 417,914,040 : x
  2. Step 2: Convert to fraction form
    191,918,940/417,914,040 = 417,914,040/x
  3. Step 3: Cross multiply
    191,918,940x = 417,914,040 × 417,914,040
  4. Step 4: Simplify right side
    191,918,940x = 174,652,144,829,121,600
  5. Step 5: Solve for x
    x = 174,652,144,829,121,600/191,918,940
  6. Step 6: Final answer
    x = 910,030,791.28

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.