Finding the Fourth Proportional to 1,228,720.76, 1,695,429.24 and 684,737.36
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Solution
The fourth proportional to 1,228,720.76, 1,695,429.24 and 684,737.36 is: 944,823.09
Step by Step Solution
- Step 1: Write the proportion equation
1,228,720.76 : 1,695,429.24 = 684,737.36 : x - Step 2: Convert to fraction form
1,228,720.76/1,695,429.24 = 684,737.36/x - Step 3: Cross multiply
1,228,720.76x = 1,695,429.24 × 684,737.36 - Step 4: Simplify right side
1,228,720.76x = 1,160,923,741,864.41 - Step 5: Solve for x
x = 1,160,923,741,864.41/1,228,720.76 - Step 6: Final answer
x = 944,823.09
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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.