Finding the Fourth Proportional to 1,186,258.57, 1,637,037.68 and 642,394.94
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Solution
The fourth proportional to 1,186,258.57, 1,637,037.68 and 642,394.94 is: 886,505.48
Step by Step Solution
- Step 1: Write the proportion equation
1,186,258.57 : 1,637,037.68 = 642,394.94 : x - Step 2: Convert to fraction form
1,186,258.57/1,637,037.68 = 642,394.94/x - Step 3: Cross multiply
1,186,258.57x = 1,637,037.68 × 642,394.94 - Step 4: Simplify right side
1,186,258.57x = 1,051,624,722,221.34 - Step 5: Solve for x
x = 1,051,624,722,221.34/1,186,258.57 - Step 6: Final answer
x = 886,505.48
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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.