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Finding the Third Proportional to 423,458,976 and 917,267,496

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Solution

The third proportional to 423,458,976 and 917,267,496 is: 1,986,921,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,458,976 : 917,267,496 = 917,267,496 : x
  2. Step 2: Convert to fraction form
    423,458,976/917,267,496 = 917,267,496/x
  3. Step 3: Cross multiply
    423,458,976x = 917,267,496 × 917,267,496
  4. Step 4: Simplify right side
    423,458,976x = 841,379,659,218,109,952
  5. Step 5: Solve for x
    x = 841,379,659,218,109,952/423,458,976
  6. Step 6: Final answer
    x = 1,986,921,300.30

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.