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Finding the Third Proportional to 685,506,108 and 1,044,321,138

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Solution

The third proportional to 685,506,108 and 1,044,321,138 is: 1,590,951,016.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,506,108 : 1,044,321,138 = 1,044,321,138 : x
  2. Step 2: Convert to fraction form
    685,506,108/1,044,321,138 = 1,044,321,138/x
  3. Step 3: Cross multiply
    685,506,108x = 1,044,321,138 × 1,044,321,138
  4. Step 4: Simplify right side
    685,506,108x = 1,090,606,639,273,615,104
  5. Step 5: Solve for x
    x = 1,090,606,639,273,615,104/685,506,108
  6. Step 6: Final answer
    x = 1,590,951,016.40

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.