Finding the Fourth Proportional to 2,157,312.40, 2,977,683.24 and 1,252,186
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Solution
The fourth proportional to 2,157,312.40, 2,977,683.24 and 1,252,186 is: 1,728,360.37
Step by Step Solution
- Step 1: Write the proportion equation
2,157,312.40 : 2,977,683.24 = 1,252,186 : x - Step 2: Convert to fraction form
2,157,312.40/2,977,683.24 = 1,252,186/x - Step 3: Cross multiply
2,157,312.40x = 2,977,683.24 × 1,252,186 - Step 4: Simplify right side
2,157,312.40x = 3,728,613,265,562.64 - Step 5: Solve for x
x = 3,728,613,265,562.64/2,157,312.40 - Step 6: Final answer
x = 1,728,360.37
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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.