Finding the Fourth Proportional to 611,886.63, 917,514.80 and 274,638.17
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Solution
The fourth proportional to 611,886.63, 917,514.80 and 274,638.17 is: 411,815.81
Step by Step Solution
- Step 1: Write the proportion equation
611,886.63 : 917,514.80 = 274,638.17 : x - Step 2: Convert to fraction form
611,886.63/917,514.80 = 274,638.17/x - Step 3: Cross multiply
611,886.63x = 917,514.80 × 274,638.17 - Step 4: Simplify right side
611,886.63x = 251,984,585,619.92 - Step 5: Solve for x
x = 251,984,585,619.92/611,886.63 - Step 6: Final answer
x = 411,815.81
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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.