Finding the Fourth Proportional to 1,863,280.40, 2,794,920.60 and 665,241.80
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Solution
The fourth proportional to 1,863,280.40, 2,794,920.60 and 665,241.80 is: 997,862.70
Step by Step Solution
- Step 1: Write the proportion equation
1,863,280.40 : 2,794,920.60 = 665,241.80 : x - Step 2: Convert to fraction form
1,863,280.40/2,794,920.60 = 665,241.80/x - Step 3: Cross multiply
1,863,280.40x = 2,794,920.60 × 665,241.80 - Step 4: Simplify right side
1,863,280.40x = 1,859,298,010,801.08 - Step 5: Solve for x
x = 1,859,298,010,801.08/1,863,280.40 - Step 6: Final answer
x = 997,862.70
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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.