Finding the Fourth Proportional to 933,205,847.04, 1,287,834,837.12 and 515,509,375.68
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Solution
The fourth proportional to 933,205,847.04, 1,287,834,837.12 and 515,509,375.68 is: 711,408,886.87
Step by Step Solution
- Step 1: Write the proportion equation
933,205,847.04 : 1,287,834,837.12 = 515,509,375.68 : x - Step 2: Convert to fraction form
933,205,847.04/1,287,834,837.12 = 515,509,375.68/x - Step 3: Cross multiply
933,205,847.04x = 1,287,834,837.12 × 515,509,375.68 - Step 4: Simplify right side
933,205,847.04x = 663,890,932,862,685,696 - Step 5: Solve for x
x = 663,890,932,862,685,696/933,205,847.04 - Step 6: Final answer
x = 711,408,886.87
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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.