Finding the Fourth Proportional to 1,272,603.78, 1,756,177.44 and 699,638.94
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Solution
The fourth proportional to 1,272,603.78, 1,756,177.44 and 699,638.94 is: 965,493.06
Step by Step Solution
- Step 1: Write the proportion equation
1,272,603.78 : 1,756,177.44 = 699,638.94 : x - Step 2: Convert to fraction form
1,272,603.78/1,756,177.44 = 699,638.94/x - Step 3: Cross multiply
1,272,603.78x = 1,756,177.44 × 699,638.94 - Step 4: Simplify right side
1,272,603.78x = 1,228,690,122,573.51 - Step 5: Solve for x
x = 1,228,690,122,573.51/1,272,603.78 - Step 6: Final answer
x = 965,493.06
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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.