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Finding the Third Proportional to 554,072 and 859,621

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Solution

The third proportional to 554,072 and 859,621 is: 1,333,668.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,072 : 859,621 = 859,621 : x
  2. Step 2: Convert to fraction form
    554,072/859,621 = 859,621/x
  3. Step 3: Cross multiply
    554,072x = 859,621 × 859,621
  4. Step 4: Simplify right side
    554,072x = 738,948,263,641
  5. Step 5: Solve for x
    x = 738,948,263,641/554,072
  6. Step 6: Final answer
    x = 1,333,668.30

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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.