Finding the Fourth Proportional to 1,259,714,559.80, 1,889,571,839.70 and 1,055,641,215.80
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Solution
The fourth proportional to 1,259,714,559.80, 1,889,571,839.70 and 1,055,641,215.80 is: 1,583,461,823.70
Step by Step Solution
- Step 1: Write the proportion equation
1,259,714,559.80 : 1,889,571,839.70 = 1,055,641,215.80 : x - Step 2: Convert to fraction form
1,259,714,559.80/1,889,571,839.70 = 1,055,641,215.80/x - Step 3: Cross multiply
1,259,714,559.80x = 1,889,571,839.70 × 1,055,641,215.80 - Step 4: Simplify right side
1,259,714,559.80x = 1,994,709,914,202,350,592 - Step 5: Solve for x
x = 1,994,709,914,202,350,592/1,259,714,559.80 - Step 6: Final answer
x = 1,583,461,823.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.