Finding the Fourth Proportional to 719,299,918.70, 1,008,040,252.90 and 719,299,918.70
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Solution
The fourth proportional to 719,299,918.70, 1,008,040,252.90 and 719,299,918.70 is: 1,008,040,252.90
Step by Step Solution
- Step 1: Write the proportion equation
719,299,918.70 : 1,008,040,252.90 = 719,299,918.70 : x - Step 2: Convert to fraction form
719,299,918.70/1,008,040,252.90 = 719,299,918.70/x - Step 3: Cross multiply
719,299,918.70x = 1,008,040,252.90 × 719,299,918.70 - Step 4: Simplify right side
719,299,918.70x = 725,083,271,957,297,408 - Step 5: Solve for x
x = 725,083,271,957,297,408/719,299,918.70 - Step 6: Final answer
x = 1,008,040,252.90
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.