Finding the Fourth Proportional to 1,427,318.61, 1,969,518.18 and 815,511
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Solution
The fourth proportional to 1,427,318.61, 1,969,518.18 and 815,511 is: 1,125,301.48
Step by Step Solution
- Step 1: Write the proportion equation
1,427,318.61 : 1,969,518.18 = 815,511 : x - Step 2: Convert to fraction form
1,427,318.61/1,969,518.18 = 815,511/x - Step 3: Cross multiply
1,427,318.61x = 1,969,518.18 × 815,511 - Step 4: Simplify right side
1,427,318.61x = 1,606,163,740,489.98 - Step 5: Solve for x
x = 1,606,163,740,489.98/1,427,318.61 - Step 6: Final answer
x = 1,125,301.48
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.