Home / 1,266,384.43-1,747,613.40-685,613.68

Finding the Fourth Proportional to 1,266,384.43, 1,747,613.40 and 685,613.68

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Solution

The fourth proportional to 1,266,384.43, 1,747,613.40 and 685,613.68 is: 946,148.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,384.43 : 1,747,613.40 = 685,613.68 : x
  2. Step 2: Convert to fraction form
    1,266,384.43/1,747,613.40 = 685,613.68/x
  3. Step 3: Cross multiply
    1,266,384.43x = 1,747,613.40 × 685,613.68
  4. Step 4: Simplify right side
    1,266,384.43x = 1,198,187,654,391.31
  5. Step 5: Solve for x
    x = 1,198,187,654,391.31/1,266,384.43
  6. Step 6: Final answer
    x = 946,148.44

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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.