Finding the Fourth Proportional to 948,609,734.64, 1,309,122,342.84 and 525,223,404
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Solution
The fourth proportional to 948,609,734.64, 1,309,122,342.84 and 525,223,404 is: 724,830,947.91
Step by Step Solution
- Step 1: Write the proportion equation
948,609,734.64 : 1,309,122,342.84 = 525,223,404 : x - Step 2: Convert to fraction form
948,609,734.64/1,309,122,342.84 = 525,223,404/x - Step 3: Cross multiply
948,609,734.64x = 1,309,122,342.84 × 525,223,404 - Step 4: Simplify right side
948,609,734.64x = 687,581,693,158,879,744 - Step 5: Solve for x
x = 687,581,693,158,879,744/948,609,734.64 - Step 6: Final answer
x = 724,830,947.91
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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.