Finding the Third Proportional to 921,507 and 1,442,421
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Solution
The third proportional to 921,507 and 1,442,421 is: 2,257,799.82
Step by Step Solution
- Step 1: Write the proportion equation
921,507 : 1,442,421 = 1,442,421 : x - Step 2: Convert to fraction form
921,507/1,442,421 = 1,442,421/x - Step 3: Cross multiply
921,507x = 1,442,421 × 1,442,421 - Step 4: Simplify right side
921,507x = 2,080,578,341,241 - Step 5: Solve for x
x = 2,080,578,341,241/921,507 - Step 6: Final answer
x = 2,257,799.82
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Why These Related Problems?
These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.