Finding the Fourth Proportional to 1,553,757.14, 2,144,031.58 and 865,405.91
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Solution
The fourth proportional to 1,553,757.14, 2,144,031.58 and 865,405.91 is: 1,194,174.79
Step by Step Solution
- Step 1: Write the proportion equation
1,553,757.14 : 2,144,031.58 = 865,405.91 : x - Step 2: Convert to fraction form
1,553,757.14/2,144,031.58 = 865,405.91/x - Step 3: Cross multiply
1,553,757.14x = 2,144,031.58 × 865,405.91 - Step 4: Simplify right side
1,553,757.14x = 1,855,457,600,558.64 - Step 5: Solve for x
x = 1,855,457,600,558.64/1,553,757.14 - Step 6: Final answer
x = 1,194,174.79
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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.