Finding the Fourth Proportional to 1,318,115.13, 1,977,154.23 and 519,403.62
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Solution
The fourth proportional to 1,318,115.13, 1,977,154.23 and 519,403.62 is: 779,098.15
Step by Step Solution
- Step 1: Write the proportion equation
1,318,115.13 : 1,977,154.23 = 519,403.62 : x - Step 2: Convert to fraction form
1,318,115.13/1,977,154.23 = 519,403.62/x - Step 3: Cross multiply
1,318,115.13x = 1,977,154.23 × 519,403.62 - Step 4: Simplify right side
1,318,115.13x = 1,026,941,064,360.31 - Step 5: Solve for x
x = 1,026,941,064,360.31/1,318,115.13 - Step 6: Final answer
x = 779,098.15
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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.