Finding the Fourth Proportional to 914,219.10, 1,371,313.80 and 307,049.58
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Solution
The fourth proportional to 914,219.10, 1,371,313.80 and 307,049.58 is: 460,569.38
Step by Step Solution
- Step 1: Write the proportion equation
914,219.10 : 1,371,313.80 = 307,049.58 : x - Step 2: Convert to fraction form
914,219.10/1,371,313.80 = 307,049.58/x - Step 3: Cross multiply
914,219.10x = 1,371,313.80 × 307,049.58 - Step 4: Simplify right side
914,219.10x = 421,061,326,338.20 - Step 5: Solve for x
x = 421,061,326,338.20/914,219.10 - Step 6: Final answer
x = 460,569.38
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1.5x scale
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.