Finding the Fourth Proportional to 1,681,784.09, 2,320,556.45 and 993,567.99
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Solution
The fourth proportional to 1,681,784.09, 2,320,556.45 and 993,567.99 is: 1,370,943.29
Step by Step Solution
- Step 1: Write the proportion equation
1,681,784.09 : 2,320,556.45 = 993,567.99 : x - Step 2: Convert to fraction form
1,681,784.09/2,320,556.45 = 993,567.99/x - Step 3: Cross multiply
1,681,784.09x = 2,320,556.45 × 993,567.99 - Step 4: Simplify right side
1,681,784.09x = 2,305,630,610,191.96 - Step 5: Solve for x
x = 2,305,630,610,191.96/1,681,784.09 - Step 6: Final answer
x = 1,370,943.29
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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.