Finding the Fourth Proportional to 921,515.64, 1,271,537.40 and 513,528.05
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Solution
The fourth proportional to 921,515.64, 1,271,537.40 and 513,528.05 is: 708,582.79
Step by Step Solution
- Step 1: Write the proportion equation
921,515.64 : 1,271,537.40 = 513,528.05 : x - Step 2: Convert to fraction form
921,515.64/1,271,537.40 = 513,528.05/x - Step 3: Cross multiply
921,515.64x = 1,271,537.40 × 513,528.05 - Step 4: Simplify right side
921,515.64x = 652,970,121,524.07 - Step 5: Solve for x
x = 652,970,121,524.07/921,515.64 - Step 6: Final answer
x = 708,582.79
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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.