Finding the Fourth Proportional to 1,160,240, 1,740,360 and 412,315.52
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Solution
The fourth proportional to 1,160,240, 1,740,360 and 412,315.52 is: 618,473.28
Step by Step Solution
- Step 1: Write the proportion equation
1,160,240 : 1,740,360 = 412,315.52 : x - Step 2: Convert to fraction form
1,160,240/1,740,360 = 412,315.52/x - Step 3: Cross multiply
1,160,240x = 1,740,360 × 412,315.52 - Step 4: Simplify right side
1,160,240x = 717,577,438,387.20 - Step 5: Solve for x
x = 717,577,438,387.20/1,160,240 - Step 6: Final answer
x = 618,473.28
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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.