Finding the Fourth Proportional to 1,281,351.53, 1,768,189.11 and 708,357.53
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Solution
The fourth proportional to 1,281,351.53, 1,768,189.11 and 708,357.53 is: 977,491.37
Step by Step Solution
- Step 1: Write the proportion equation
1,281,351.53 : 1,768,189.11 = 708,357.53 : x - Step 2: Convert to fraction form
1,281,351.53/1,768,189.11 = 708,357.53/x - Step 3: Cross multiply
1,281,351.53x = 1,768,189.11 × 708,357.53 - Step 4: Simplify right side
1,281,351.53x = 1,252,510,061,691.55 - Step 5: Solve for x
x = 1,252,510,061,691.55/1,281,351.53 - Step 6: Final answer
x = 977,491.37
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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.