Finding the Fourth Proportional to 1,643,861.90, 2,268,511.70 and 908,813.02
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Solution
The fourth proportional to 1,643,861.90, 2,268,511.70 and 908,813.02 is: 1,254,152.17
Step by Step Solution
- Step 1: Write the proportion equation
1,643,861.90 : 2,268,511.70 = 908,813.02 : x - Step 2: Convert to fraction form
1,643,861.90/2,268,511.70 = 908,813.02/x - Step 3: Cross multiply
1,643,861.90x = 2,268,511.70 × 908,813.02 - Step 4: Simplify right side
1,643,861.90x = 2,061,652,968,982.33 - Step 5: Solve for x
x = 2,061,652,968,982.33/1,643,861.90 - Step 6: Final answer
x = 1,254,152.17
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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.