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Finding the Third Proportional to 768,178.69 and 1,681,008.19

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Solution

The third proportional to 768,178.69 and 1,681,008.19 is: 3,678,556.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,178.69 : 1,681,008.19 = 1,681,008.19 : x
  2. Step 2: Convert to fraction form
    768,178.69/1,681,008.19 = 1,681,008.19/x
  3. Step 3: Cross multiply
    768,178.69x = 1,681,008.19 × 1,681,008.19
  4. Step 4: Simplify right side
    768,178.69x = 2,825,788,526,442.04
  5. Step 5: Solve for x
    x = 2,825,788,526,442.04/768,178.69
  6. Step 6: Final answer
    x = 3,678,556.27

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.