Finding the Fourth Proportional to 1,857,811.71, 2,786,048.97 and 643,058.28
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Solution
The fourth proportional to 1,857,811.71, 2,786,048.97 and 643,058.28 is: 964,355.99
Step by Step Solution
- Step 1: Write the proportion equation
1,857,811.71 : 2,786,048.97 = 643,058.28 : x - Step 2: Convert to fraction form
1,857,811.71/2,786,048.97 = 643,058.28/x - Step 3: Cross multiply
1,857,811.71x = 2,786,048.97 × 643,058.28 - Step 4: Simplify right side
1,857,811.71x = 1,791,591,858,643.97 - Step 5: Solve for x
x = 1,791,591,858,643.97/1,857,811.71 - Step 6: Final answer
x = 964,355.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.