Finding the Fourth Proportional to 1,110,977.78, 1,533,243.74 and 627,631.64
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Solution
The fourth proportional to 1,110,977.78, 1,533,243.74 and 627,631.64 is: 866,184.99
Step by Step Solution
- Step 1: Write the proportion equation
1,110,977.78 : 1,533,243.74 = 627,631.64 : x - Step 2: Convert to fraction form
1,110,977.78/1,533,243.74 = 627,631.64/x - Step 3: Cross multiply
1,110,977.78x = 1,533,243.74 × 627,631.64 - Step 4: Simplify right side
1,110,977.78x = 962,312,278,001.22 - Step 5: Solve for x
x = 962,312,278,001.22/1,110,977.78 - Step 6: Final answer
x = 866,184.99
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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.