Finding the Fourth Proportional to 715,426.56, 987,005.52 and 460,926
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Solution
The fourth proportional to 715,426.56, 987,005.52 and 460,926 is: 635,895.47
Step by Step Solution
- Step 1: Write the proportion equation
715,426.56 : 987,005.52 = 460,926 : x - Step 2: Convert to fraction form
715,426.56/987,005.52 = 460,926/x - Step 3: Cross multiply
715,426.56x = 987,005.52 × 460,926 - Step 4: Simplify right side
715,426.56x = 454,936,506,311.52 - Step 5: Solve for x
x = 454,936,506,311.52/715,426.56 - Step 6: Final answer
x = 635,895.47
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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.