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Finding the Fourth Proportional to 1,266,612.03, 1,747,927.23 and 685,841.49

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Solution

The fourth proportional to 1,266,612.03, 1,747,927.23 and 685,841.49 is: 946,462.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,612.03 : 1,747,927.23 = 685,841.49 : x
  2. Step 2: Convert to fraction form
    1,266,612.03/1,747,927.23 = 685,841.49/x
  3. Step 3: Cross multiply
    1,266,612.03x = 1,747,927.23 × 685,841.49
  4. Step 4: Simplify right side
    1,266,612.03x = 1,198,801,015,834.77
  5. Step 5: Solve for x
    x = 1,198,801,015,834.77/1,266,612.03
  6. Step 6: Final answer
    x = 946,462.68

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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.