Finding the Fourth Proportional to 1,921,695.12, 2,882,661.35 and 642,417.57
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Solution
The fourth proportional to 1,921,695.12, 2,882,661.35 and 642,417.57 is: 963,666.02
Step by Step Solution
- Step 1: Write the proportion equation
1,921,695.12 : 2,882,661.35 = 642,417.57 : x - Step 2: Convert to fraction form
1,921,695.12/2,882,661.35 = 642,417.57/x - Step 3: Cross multiply
1,921,695.12x = 2,882,661.35 × 642,417.57 - Step 4: Simplify right side
1,921,695.12x = 1,851,872,296,387.83 - Step 5: Solve for x
x = 1,851,872,296,387.83/1,921,695.12 - Step 6: Final answer
x = 963,666.02
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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.