Finding the Fourth Proportional to 1,354,315,165.97, 1,868,961,548.97 and 759,631,432.18
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Solution
The fourth proportional to 1,354,315,165.97, 1,868,961,548.97 and 759,631,432.18 is: 1,048,295,089.51
Step by Step Solution
- Step 1: Write the proportion equation
1,354,315,165.97 : 1,868,961,548.97 = 759,631,432.18 : x - Step 2: Convert to fraction form
1,354,315,165.97/1,868,961,548.97 = 759,631,432.18/x - Step 3: Cross multiply
1,354,315,165.97x = 1,868,961,548.97 × 759,631,432.18 - Step 4: Simplify right side
1,354,315,165.97x = 1,419,721,938,132,254,976 - Step 5: Solve for x
x = 1,419,721,938,132,254,976/1,354,315,165.97 - Step 6: Final answer
x = 1,048,295,089.51
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1.5x scale
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.