Finding the Fourth Proportional to 1,266,334,215.91, 1,747,541,383.60 and 701,855,540.49
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Solution
The fourth proportional to 1,266,334,215.91, 1,747,541,383.60 and 701,855,540.49 is: 968,560,737.68
Step by Step Solution
- Step 1: Write the proportion equation
1,266,334,215.91 : 1,747,541,383.60 = 701,855,540.49 : x - Step 2: Convert to fraction form
1,266,334,215.91/1,747,541,383.60 = 701,855,540.49/x - Step 3: Cross multiply
1,266,334,215.91x = 1,747,541,383.60 × 701,855,540.49 - Step 4: Simplify right side
1,266,334,215.91x = 1,226,521,602,315,220,480 - Step 5: Solve for x
x = 1,226,521,602,315,220,480/1,266,334,215.91 - Step 6: Final answer
x = 968,560,737.68
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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.