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Finding the Fourth Proportional to 1,219,560, 1,682,992.80 and 683,016

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Solution

The fourth proportional to 1,219,560, 1,682,992.80 and 683,016 is: 942,562.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,560 : 1,682,992.80 = 683,016 : x
  2. Step 2: Convert to fraction form
    1,219,560/1,682,992.80 = 683,016/x
  3. Step 3: Cross multiply
    1,219,560x = 1,682,992.80 × 683,016
  4. Step 4: Simplify right side
    1,219,560x = 1,149,511,010,284.80
  5. Step 5: Solve for x
    x = 1,149,511,010,284.80/1,219,560
  6. Step 6: Final answer
    x = 942,562.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.