Home / 1,266,006.69-1,747,089.05-685,229.72

Finding the Fourth Proportional to 1,266,006.69, 1,747,089.05 and 685,229.72

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Solution

The fourth proportional to 1,266,006.69, 1,747,089.05 and 685,229.72 is: 945,616.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,006.69 : 1,747,089.05 = 685,229.72 : x
  2. Step 2: Convert to fraction form
    1,266,006.69/1,747,089.05 = 685,229.72/x
  3. Step 3: Cross multiply
    1,266,006.69x = 1,747,089.05 × 685,229.72
  4. Step 4: Simplify right side
    1,266,006.69x = 1,197,157,328,384.97
  5. Step 5: Solve for x
    x = 1,197,157,328,384.97/1,266,006.69
  6. Step 6: Final answer
    x = 945,616.91

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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.