Finding the Fourth Proportional to 1,215,906.12, 1,823,581.55 and 457,827.53
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Solution
The fourth proportional to 1,215,906.12, 1,823,581.55 and 457,827.53 is: 686,636.75
Step by Step Solution
- Step 1: Write the proportion equation
1,215,906.12 : 1,823,581.55 = 457,827.53 : x - Step 2: Convert to fraction form
1,215,906.12/1,823,581.55 = 457,827.53/x - Step 3: Cross multiply
1,215,906.12x = 1,823,581.55 × 457,827.53 - Step 4: Simplify right side
1,215,906.12x = 834,885,828,816.73 - Step 5: Solve for x
x = 834,885,828,816.73/1,215,906.12 - Step 6: Final answer
x = 686,636.75
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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.