Finding the Fourth Proportional to 1,354,919.23, 1,869,653.79 and 782,143.93
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Solution
The fourth proportional to 1,354,919.23, 1,869,653.79 and 782,143.93 is: 1,079,280.84
Step by Step Solution
- Step 1: Write the proportion equation
1,354,919.23 : 1,869,653.79 = 782,143.93 : x - Step 2: Convert to fraction form
1,354,919.23/1,869,653.79 = 782,143.93/x - Step 3: Cross multiply
1,354,919.23x = 1,869,653.79 × 782,143.93 - Step 4: Simplify right side
1,354,919.23x = 1,462,338,363,050.00 - Step 5: Solve for x
x = 1,462,338,363,050.00/1,354,919.23 - Step 6: Final answer
x = 1,079,280.84
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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.