Finding the Fourth Proportional to 1,115,519.14, 1,539,256.14 and 656,360.74
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Solution
The fourth proportional to 1,115,519.14, 1,539,256.14 and 656,360.74 is: 905,683.52
Step by Step Solution
- Step 1: Write the proportion equation
1,115,519.14 : 1,539,256.14 = 656,360.74 : x - Step 2: Convert to fraction form
1,115,519.14/1,539,256.14 = 656,360.74/x - Step 3: Cross multiply
1,115,519.14x = 1,539,256.14 × 656,360.74 - Step 4: Simplify right side
1,115,519.14x = 1,010,307,299,099.94 - Step 5: Solve for x
x = 1,010,307,299,099.94/1,115,519.14 - Step 6: Final answer
x = 905,683.52
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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.