Finding the Fourth Proportional to 1,965,811.97, 2,712,527.93 and 1,106,320.97
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Solution
The fourth proportional to 1,965,811.97, 2,712,527.93 and 1,106,320.97 is: 1,526,558.27
Step by Step Solution
- Step 1: Write the proportion equation
1,965,811.97 : 2,712,527.93 = 1,106,320.97 : x - Step 2: Convert to fraction form
1,965,811.97/2,712,527.93 = 1,106,320.97/x - Step 3: Cross multiply
1,965,811.97x = 2,712,527.93 × 1,106,320.97 - Step 4: Simplify right side
1,965,811.97x = 3,000,926,525,138.09 - Step 5: Solve for x
x = 3,000,926,525,138.09/1,965,811.97 - Step 6: Final answer
x = 1,526,558.27
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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.