Finding the Fourth Proportional to 1,063,425,192.45, 1,467,655,451.28 and 605,246,138.84
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Solution
The fourth proportional to 1,063,425,192.45, 1,467,655,451.28 and 605,246,138.84 is: 835,312,912.78
Step by Step Solution
- Step 1: Write the proportion equation
1,063,425,192.45 : 1,467,655,451.28 = 605,246,138.84 : x - Step 2: Convert to fraction form
1,063,425,192.45/1,467,655,451.28 = 605,246,138.84/x - Step 3: Cross multiply
1,063,425,192.45x = 1,467,655,451.28 × 605,246,138.84 - Step 4: Simplify right side
1,063,425,192.45x = 888,292,795,030,103,936 - Step 5: Solve for x
x = 888,292,795,030,103,936/1,063,425,192.45 - Step 6: Final answer
x = 835,312,912.78
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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.