Finding the Fourth Proportional to 1,277,539.22, 1,762,558.90 and 818,906.63
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Solution
The fourth proportional to 1,277,539.22, 1,762,558.90 and 818,906.63 is: 1,129,805.76
Step by Step Solution
- Step 1: Write the proportion equation
1,277,539.22 : 1,762,558.90 = 818,906.63 : x - Step 2: Convert to fraction form
1,277,539.22/1,762,558.90 = 818,906.63/x - Step 3: Cross multiply
1,277,539.22x = 1,762,558.90 × 818,906.63 - Step 4: Simplify right side
1,277,539.22x = 1,443,371,158,115.45 - Step 5: Solve for x
x = 1,443,371,158,115.45/1,277,539.22 - Step 6: Final answer
x = 1,129,805.76
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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.