Finding the Fourth Proportional to 1,185,677.19, 1,636,235.51 and 641,811.31
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Solution
The fourth proportional to 1,185,677.19, 1,636,235.51 and 641,811.31 is: 885,700.14
Step by Step Solution
- Step 1: Write the proportion equation
1,185,677.19 : 1,636,235.51 = 641,811.31 : x - Step 2: Convert to fraction form
1,185,677.19/1,636,235.51 = 641,811.31/x - Step 3: Cross multiply
1,185,677.19x = 1,636,235.51 × 641,811.31 - Step 4: Simplify right side
1,185,677.19x = 1,050,154,448,841.97 - Step 5: Solve for x
x = 1,050,154,448,841.97/1,185,677.19 - Step 6: Final answer
x = 885,700.14
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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.