Finding the Fourth Proportional to 1,578,643.36, 2,178,483.60 and 863,236
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Solution
The fourth proportional to 1,578,643.36, 2,178,483.60 and 863,236 is: 1,191,241.49
Step by Step Solution
- Step 1: Write the proportion equation
1,578,643.36 : 2,178,483.60 = 863,236 : x - Step 2: Convert to fraction form
1,578,643.36/2,178,483.60 = 863,236/x - Step 3: Cross multiply
1,578,643.36x = 2,178,483.60 × 863,236 - Step 4: Simplify right side
1,578,643.36x = 1,880,545,468,929.60 - Step 5: Solve for x
x = 1,880,545,468,929.60/1,578,643.36 - Step 6: Final answer
x = 1,191,241.49
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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.