Finding the Fourth Proportional to 1,291,891.37, 1,936,534.37 and 812,461.79
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Solution
The fourth proportional to 1,291,891.37, 1,936,534.37 and 812,461.79 is: 1,217,873.43
Step by Step Solution
- Step 1: Write the proportion equation
1,291,891.37 : 1,936,534.37 = 812,461.79 : x - Step 2: Convert to fraction form
1,291,891.37/1,936,534.37 = 812,461.79/x - Step 3: Cross multiply
1,291,891.37x = 1,936,534.37 × 812,461.79 - Step 4: Simplify right side
1,291,891.37x = 1,573,360,166,901.74 - Step 5: Solve for x
x = 1,573,360,166,901.74/1,291,891.37 - Step 6: Final answer
x = 1,217,873.43
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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.