Finding the Fourth Proportional to 1,211,977.01, 1,672,533.52 and 668,101.09
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Solution
The fourth proportional to 1,211,977.01, 1,672,533.52 and 668,101.09 is: 921,982.40
Step by Step Solution
- Step 1: Write the proportion equation
1,211,977.01 : 1,672,533.52 = 668,101.09 : x - Step 2: Convert to fraction form
1,211,977.01/1,672,533.52 = 668,101.09/x - Step 3: Cross multiply
1,211,977.01x = 1,672,533.52 × 668,101.09 - Step 4: Simplify right side
1,211,977.01x = 1,117,421,467,773.54 - Step 5: Solve for x
x = 1,117,421,467,773.54/1,211,977.01 - Step 6: Final answer
x = 921,982.40
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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.