Finding the Fourth Proportional to 1,556,211.28, 2,148,107.34 and 911,840.08
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Solution
The fourth proportional to 1,556,211.28, 2,148,107.34 and 911,840.08 is: 1,258,653.24
Step by Step Solution
- Step 1: Write the proportion equation
1,556,211.28 : 2,148,107.34 = 911,840.08 : x - Step 2: Convert to fraction form
1,556,211.28/2,148,107.34 = 911,840.08/x - Step 3: Cross multiply
1,556,211.28x = 2,148,107.34 × 911,840.08 - Step 4: Simplify right side
1,556,211.28x = 1,958,730,368,754.19 - Step 5: Solve for x
x = 1,958,730,368,754.19/1,556,211.28 - Step 6: Final answer
x = 1,258,653.24
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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.