Finding the Fourth Proportional to 1,220,153.56, 1,683,912.66 and 676,459.88
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Solution
The fourth proportional to 1,220,153.56, 1,683,912.66 and 676,459.88 is: 933,570.49
Step by Step Solution
- Step 1: Write the proportion equation
1,220,153.56 : 1,683,912.66 = 676,459.88 : x - Step 2: Convert to fraction form
1,220,153.56/1,683,912.66 = 676,459.88/x - Step 3: Cross multiply
1,220,153.56x = 1,683,912.66 × 676,459.88 - Step 4: Simplify right side
1,220,153.56x = 1,139,099,355,914.08 - Step 5: Solve for x
x = 1,139,099,355,914.08/1,220,153.56 - Step 6: Final answer
x = 933,570.49
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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.