Finding the Fourth Proportional to 612,985,678.24, 845,938,170 and 334,545,060.64
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Solution
The fourth proportional to 612,985,678.24, 845,938,170 and 334,545,060.64 is: 461,681,971.42
Step by Step Solution
- Step 1: Write the proportion equation
612,985,678.24 : 845,938,170 = 334,545,060.64 : x - Step 2: Convert to fraction form
612,985,678.24/845,938,170 = 334,545,060.64/x - Step 3: Cross multiply
612,985,678.24x = 845,938,170 × 334,545,060.64 - Step 4: Simplify right side
612,985,678.24x = 283,004,436,380,340,608 - Step 5: Solve for x
x = 283,004,436,380,340,608/612,985,678.24 - Step 6: Final answer
x = 461,681,971.42
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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.