Finding the Fourth Proportional to 1,611,613.12, 2,223,979.68 and 886,460.80
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Solution
The fourth proportional to 1,611,613.12, 2,223,979.68 and 886,460.80 is: 1,223,290.37
Step by Step Solution
- Step 1: Write the proportion equation
1,611,613.12 : 2,223,979.68 = 886,460.80 : x - Step 2: Convert to fraction form
1,611,613.12/2,223,979.68 = 886,460.80/x - Step 3: Cross multiply
1,611,613.12x = 2,223,979.68 × 886,460.80 - Step 4: Simplify right side
1,611,613.12x = 1,971,470,806,316.54 - Step 5: Solve for x
x = 1,971,470,806,316.54/1,611,613.12 - Step 6: Final answer
x = 1,223,290.37
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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.