Finding the Fourth Proportional to 1,857,854.67, 2,786,113.42 and 643,101.24
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Solution
The fourth proportional to 1,857,854.67, 2,786,113.42 and 643,101.24 is: 964,420.42
Step by Step Solution
- Step 1: Write the proportion equation
1,857,854.67 : 2,786,113.42 = 643,101.24 : x - Step 2: Convert to fraction form
1,857,854.67/2,786,113.42 = 643,101.24/x - Step 3: Cross multiply
1,857,854.67x = 2,786,113.42 × 643,101.24 - Step 4: Simplify right side
1,857,854.67x = 1,791,752,981,252.07 - Step 5: Solve for x
x = 1,791,752,981,252.07/1,857,854.67 - Step 6: Final answer
x = 964,420.42
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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.