Finding the Fourth Proportional to 1,213,474,350.98, 1,674,118,114.47 and 704,750,460.93
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Solution
The fourth proportional to 1,213,474,350.98, 1,674,118,114.47 and 704,750,460.93 is: 972,278,904.68
Step by Step Solution
- Step 1: Write the proportion equation
1,213,474,350.98 : 1,674,118,114.47 = 704,750,460.93 : x - Step 2: Convert to fraction form
1,213,474,350.98/1,674,118,114.47 = 704,750,460.93/x - Step 3: Cross multiply
1,213,474,350.98x = 1,674,118,114.47 × 704,750,460.93 - Step 4: Simplify right side
1,213,474,350.98x = 1,179,835,512,823,994,880 - Step 5: Solve for x
x = 1,179,835,512,823,994,880/1,213,474,350.98 - Step 6: Final answer
x = 972,278,904.68
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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.