Finding the Fourth Proportional to 1,230,286.93, 1,697,793.62 and 686,390.36
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Solution
The fourth proportional to 1,230,286.93, 1,697,793.62 and 686,390.36 is: 947,217.38
Step by Step Solution
- Step 1: Write the proportion equation
1,230,286.93 : 1,697,793.62 = 686,390.36 : x - Step 2: Convert to fraction form
1,230,286.93/1,697,793.62 = 686,390.36/x - Step 3: Cross multiply
1,230,286.93x = 1,697,793.62 × 686,390.36 - Step 4: Simplify right side
1,230,286.93x = 1,165,349,162,116.58 - Step 5: Solve for x
x = 1,165,349,162,116.58/1,230,286.93 - Step 6: Final answer
x = 947,217.38
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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.