Finding the Fourth Proportional to 521,728.70, 782,593.05 and 514,730.30
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Solution
The fourth proportional to 521,728.70, 782,593.05 and 514,730.30 is: 772,095.45
Step by Step Solution
- Step 1: Write the proportion equation
521,728.70 : 782,593.05 = 514,730.30 : x - Step 2: Convert to fraction form
521,728.70/782,593.05 = 514,730.30/x - Step 3: Cross multiply
521,728.70x = 782,593.05 × 514,730.30 - Step 4: Simplify right side
521,728.70x = 402,824,355,404.42 - Step 5: Solve for x
x = 402,824,355,404.42/521,728.70 - Step 6: Final answer
x = 772,095.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.