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Finding the Third Proportional to 858,358.50 and 1,326,990

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Solution

The third proportional to 858,358.50 and 1,326,990 is: 2,051,476.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,358.50 : 1,326,990 = 1,326,990 : x
  2. Step 2: Convert to fraction form
    858,358.50/1,326,990 = 1,326,990/x
  3. Step 3: Cross multiply
    858,358.50x = 1,326,990 × 1,326,990
  4. Step 4: Simplify right side
    858,358.50x = 1,760,902,460,100
  5. Step 5: Solve for x
    x = 1,760,902,460,100/858,358.50
  6. Step 6: Final answer
    x = 2,051,476.70

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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.