Finding the Fourth Proportional to 1,689,168.78, 2,330,990.19 and 925,228.62
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Solution
The fourth proportional to 1,689,168.78, 2,330,990.19 and 925,228.62 is: 1,276,781.14
Step by Step Solution
- Step 1: Write the proportion equation
1,689,168.78 : 2,330,990.19 = 925,228.62 : x - Step 2: Convert to fraction form
1,689,168.78/2,330,990.19 = 925,228.62/x - Step 3: Cross multiply
1,689,168.78x = 2,330,990.19 × 925,228.62 - Step 4: Simplify right side
1,689,168.78x = 2,156,698,836,727.24 - Step 5: Solve for x
x = 2,156,698,836,727.24/1,689,168.78 - Step 6: Final answer
x = 1,276,781.14
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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.