Finding the Fourth Proportional to 4,984,941.05, 7,477,411.58 and 4,267,495.70
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Solution
The fourth proportional to 4,984,941.05, 7,477,411.58 and 4,267,495.70 is: 6,401,243.55
Step by Step Solution
- Step 1: Write the proportion equation
4,984,941.05 : 7,477,411.58 = 4,267,495.70 : x - Step 2: Convert to fraction form
4,984,941.05/7,477,411.58 = 4,267,495.70/x - Step 3: Cross multiply
4,984,941.05x = 7,477,411.58 × 4,267,495.70 - Step 4: Simplify right side
4,984,941.05x = 31,909,821,743,442.73 - Step 5: Solve for x
x = 31,909,821,743,442.73/4,984,941.05 - Step 6: Final answer
x = 6,401,243.55
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.