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Finding the Third Proportional to 319,045,989 and 692,542,815

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Solution

The third proportional to 319,045,989 and 692,542,815 is: 1,503,280,301.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,045,989 : 692,542,815 = 692,542,815 : x
  2. Step 2: Convert to fraction form
    319,045,989/692,542,815 = 692,542,815/x
  3. Step 3: Cross multiply
    319,045,989x = 692,542,815 × 692,542,815
  4. Step 4: Simplify right side
    319,045,989x = 479,615,550,608,124,224
  5. Step 5: Solve for x
    x = 479,615,550,608,124,224/319,045,989
  6. Step 6: Final answer
    x = 1,503,280,301.73

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