Finding the Fourth Proportional to 905,445.18, 1,247,932.71 and 663,213.06
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Solution
The fourth proportional to 905,445.18, 1,247,932.71 and 663,213.06 is: 914,075.52
Step by Step Solution
- Step 1: Write the proportion equation
905,445.18 : 1,247,932.71 = 663,213.06 : x - Step 2: Convert to fraction form
905,445.18/1,247,932.71 = 663,213.06/x - Step 3: Cross multiply
905,445.18x = 1,247,932.71 × 663,213.06 - Step 4: Simplify right side
905,445.18x = 827,645,271,273.19 - Step 5: Solve for x
x = 827,645,271,273.19/905,445.18 - Step 6: Final answer
x = 914,075.52
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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.