Finding the Fourth Proportional to 1,287,859.60, 1,777,157.40 and 714,854.68
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Solution
The fourth proportional to 1,287,859.60, 1,777,157.40 and 714,854.68 is: 986,450.14
Step by Step Solution
- Step 1: Write the proportion equation
1,287,859.60 : 1,777,157.40 = 714,854.68 : x - Step 2: Convert to fraction form
1,287,859.60/1,777,157.40 = 714,854.68/x - Step 3: Cross multiply
1,287,859.60x = 1,777,157.40 × 714,854.68 - Step 4: Simplify right side
1,287,859.60x = 1,270,409,284,486.63 - Step 5: Solve for x
x = 1,270,409,284,486.63/1,287,859.60 - Step 6: Final answer
x = 986,450.14
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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.