Finding the Fourth Proportional to 1,611,539.18, 2,223,925.20 and 886,442.06
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Solution
The fourth proportional to 1,611,539.18, 2,223,925.20 and 886,442.06 is: 1,223,290.67
Step by Step Solution
- Step 1: Write the proportion equation
1,611,539.18 : 2,223,925.20 = 886,442.06 : x - Step 2: Convert to fraction form
1,611,539.18/2,223,925.20 = 886,442.06/x - Step 3: Cross multiply
1,611,539.18x = 2,223,925.20 × 886,442.06 - Step 4: Simplify right side
1,611,539.18x = 1,971,380,835,573.91 - Step 5: Solve for x
x = 1,971,380,835,573.91/1,611,539.18 - Step 6: Final answer
x = 1,223,290.67
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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.