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Finding the Third Proportional to 343,356.19 and 745,821

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Solution

The third proportional to 343,356.19 and 745,821 is: 1,620,034.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,356.19 : 745,821 = 745,821 : x
  2. Step 2: Convert to fraction form
    343,356.19/745,821 = 745,821/x
  3. Step 3: Cross multiply
    343,356.19x = 745,821 × 745,821
  4. Step 4: Simplify right side
    343,356.19x = 556,248,964,041
  5. Step 5: Solve for x
    x = 556,248,964,041/343,356.19
  6. Step 6: Final answer
    x = 1,620,034.78

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Why These Related Problems?

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