Finding the Fourth Proportional to 1,645,864.08, 2,271,201.12 and 920,571.72
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Solution
The fourth proportional to 1,645,864.08, 2,271,201.12 and 920,571.72 is: 1,270,337.90
Step by Step Solution
- Step 1: Write the proportion equation
1,645,864.08 : 2,271,201.12 = 920,571.72 : x - Step 2: Convert to fraction form
1,645,864.08/2,271,201.12 = 920,571.72/x - Step 3: Cross multiply
1,645,864.08x = 2,271,201.12 × 920,571.72 - Step 4: Simplify right side
1,645,864.08x = 2,090,803,521,504.33 - Step 5: Solve for x
x = 2,090,803,521,504.33/1,645,864.08 - Step 6: Final answer
x = 1,270,337.90
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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.