Finding the Fourth Proportional to 1,405,742.66, 1,939,925.69 and 761,163.14
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Solution
The fourth proportional to 1,405,742.66, 1,939,925.69 and 761,163.14 is: 1,050,405.58
Step by Step Solution
- Step 1: Write the proportion equation
1,405,742.66 : 1,939,925.69 = 761,163.14 : x - Step 2: Convert to fraction form
1,405,742.66/1,939,925.69 = 761,163.14/x - Step 3: Cross multiply
1,405,742.66x = 1,939,925.69 × 761,163.14 - Step 4: Simplify right side
1,405,742.66x = 1,476,599,929,567.07 - Step 5: Solve for x
x = 1,476,599,929,567.07/1,405,742.66 - Step 6: Final answer
x = 1,050,405.58
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.