Finding the Fourth Proportional to 1,291,958.19, 1,936,634.58 and 812,528.61
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Solution
The fourth proportional to 1,291,958.19, 1,936,634.58 and 812,528.61 is: 1,217,973.63
Step by Step Solution
- Step 1: Write the proportion equation
1,291,958.19 : 1,936,634.58 = 812,528.61 : x - Step 2: Convert to fraction form
1,291,958.19/1,936,634.58 = 812,528.61/x - Step 3: Cross multiply
1,291,958.19x = 1,936,634.58 × 812,528.61 - Step 4: Simplify right side
1,291,958.19x = 1,573,571,003,365.33 - Step 5: Solve for x
x = 1,573,571,003,365.33/1,291,958.19 - Step 6: Final answer
x = 1,217,973.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.