Finding the Fourth Proportional to 677,648.99, 935,146.88 and 387,257.23
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Solution
The fourth proportional to 677,648.99, 935,146.88 and 387,257.23 is: 534,409.99
Step by Step Solution
- Step 1: Write the proportion equation
677,648.99 : 935,146.88 = 387,257.23 : x - Step 2: Convert to fraction form
677,648.99/935,146.88 = 387,257.23/x - Step 3: Cross multiply
677,648.99x = 935,146.88 × 387,257.23 - Step 4: Simplify right side
677,648.99x = 362,142,387,233.06 - Step 5: Solve for x
x = 362,142,387,233.06/677,648.99 - Step 6: Final answer
x = 534,409.99
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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.