Finding the Fourth Proportional to 893,269,713.18, 1,232,746,216.37 and 496,821,370.19
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Solution
The fourth proportional to 893,269,713.18, 1,232,746,216.37 and 496,821,370.19 is: 685,632,407.85
Step by Step Solution
- Step 1: Write the proportion equation
893,269,713.18 : 1,232,746,216.37 = 496,821,370.19 : x - Step 2: Convert to fraction form
893,269,713.18/1,232,746,216.37 = 496,821,370.19/x - Step 3: Cross multiply
893,269,713.18x = 1,232,746,216.37 × 496,821,370.19 - Step 4: Simplify right side
893,269,713.18x = 612,454,664,310,997,504 - Step 5: Solve for x
x = 612,454,664,310,997,504/893,269,713.18 - Step 6: Final answer
x = 685,632,407.85
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Double scale
Find fourth proportional to 893,269,714.18, 1,232,746,217.75 and 496,821,371.19
Similar ratio
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1.5x scale
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.