Finding the Fourth Proportional to 1,115,996.13, 1,539,976.05 and 619,292.79
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Solution
The fourth proportional to 1,115,996.13, 1,539,976.05 and 619,292.79 is: 854,569.33
Step by Step Solution
- Step 1: Write the proportion equation
1,115,996.13 : 1,539,976.05 = 619,292.79 : x - Step 2: Convert to fraction form
1,115,996.13/1,539,976.05 = 619,292.79/x - Step 3: Cross multiply
1,115,996.13x = 1,539,976.05 × 619,292.79 - Step 4: Simplify right side
1,115,996.13x = 953,696,064,537.68 - Step 5: Solve for x
x = 953,696,064,537.68/1,115,996.13 - Step 6: Final answer
x = 854,569.33
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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.