Finding the Fourth Proportional to 859,977.16, 1,186,672.05 and 515,827.09
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Solution
The fourth proportional to 859,977.16, 1,186,672.05 and 515,827.09 is: 711,783.54
Step by Step Solution
- Step 1: Write the proportion equation
859,977.16 : 1,186,672.05 = 515,827.09 : x - Step 2: Convert to fraction form
859,977.16/1,186,672.05 = 515,827.09/x - Step 3: Cross multiply
859,977.16x = 1,186,672.05 × 515,827.09 - Step 4: Simplify right side
859,977.16x = 612,117,590,335.84 - Step 5: Solve for x
x = 612,117,590,335.84/859,977.16 - Step 6: Final answer
x = 711,783.54
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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.