Finding the Fourth Proportional to 1,395,786.88, 1,926,032.88 and 783,815.68
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Solution
The fourth proportional to 1,395,786.88, 1,926,032.88 and 783,815.68 is: 1,081,579.71
Step by Step Solution
- Step 1: Write the proportion equation
1,395,786.88 : 1,926,032.88 = 783,815.68 : x - Step 2: Convert to fraction form
1,395,786.88/1,926,032.88 = 783,815.68/x - Step 3: Cross multiply
1,395,786.88x = 1,926,032.88 × 783,815.68 - Step 4: Simplify right side
1,395,786.88x = 1,509,654,771,539.56 - Step 5: Solve for x
x = 1,509,654,771,539.56/1,395,786.88 - Step 6: Final answer
x = 1,081,579.71
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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.