Finding the Fourth Proportional to 1,683,647.55, 2,323,346.76 and 919,553.49
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Solution
The fourth proportional to 1,683,647.55, 2,323,346.76 and 919,553.49 is: 1,268,936.38
Step by Step Solution
- Step 1: Write the proportion equation
1,683,647.55 : 2,323,346.76 = 919,553.49 : x - Step 2: Convert to fraction form
1,683,647.55/2,323,346.76 = 919,553.49/x - Step 3: Cross multiply
1,683,647.55x = 2,323,346.76 × 919,553.49 - Step 4: Simplify right side
1,683,647.55x = 2,136,441,621,638.19 - Step 5: Solve for x
x = 2,136,441,621,638.19/1,683,647.55 - Step 6: Final answer
x = 1,268,936.38
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1.5x scale
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.