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Finding the Fourth Proportional to 1,082,742.96, 1,493,841.78 and 629,946.48

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Solution

The fourth proportional to 1,082,742.96, 1,493,841.78 and 629,946.48 is: 869,126.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,082,742.96 : 1,493,841.78 = 629,946.48 : x
  2. Step 2: Convert to fraction form
    1,082,742.96/1,493,841.78 = 629,946.48/x
  3. Step 3: Cross multiply
    1,082,742.96x = 1,493,841.78 × 629,946.48
  4. Step 4: Simplify right side
    1,082,742.96x = 941,040,370,987.94
  5. Step 5: Solve for x
    x = 941,040,370,987.94/1,082,742.96
  6. Step 6: Final answer
    x = 869,126.29

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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.