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Finding the Third Proportional to 827,051,916.50 and 1,280,458,386.75

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Solution

The third proportional to 827,051,916.50 and 1,280,458,386.75 is: 1,982,431,389.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,051,916.50 : 1,280,458,386.75 = 1,280,458,386.75 : x
  2. Step 2: Convert to fraction form
    827,051,916.50/1,280,458,386.75 = 1,280,458,386.75/x
  3. Step 3: Cross multiply
    827,051,916.50x = 1,280,458,386.75 × 1,280,458,386.75
  4. Step 4: Simplify right side
    827,051,916.50x = 1,639,573,680,198,412,544
  5. Step 5: Solve for x
    x = 1,639,573,680,198,412,544/827,051,916.50
  6. Step 6: Final answer
    x = 1,982,431,389.72

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.