Finding the Fourth Proportional to 1,037,186.19, 1,431,212.36 and 578,257.61
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Solution
The fourth proportional to 1,037,186.19, 1,431,212.36 and 578,257.61 is: 797,937.18
Step by Step Solution
- Step 1: Write the proportion equation
1,037,186.19 : 1,431,212.36 = 578,257.61 : x - Step 2: Convert to fraction form
1,037,186.19/1,431,212.36 = 578,257.61/x - Step 3: Cross multiply
1,037,186.19x = 1,431,212.36 × 578,257.61 - Step 4: Simplify right side
1,037,186.19x = 827,609,428,648.71 - Step 5: Solve for x
x = 827,609,428,648.71/1,037,186.19 - Step 6: Final answer
x = 797,937.18
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1.5x scale
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.