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Finding the Fourth Proportional to 350,861.20, 525,514.20 and 271,718.80

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Solution

The fourth proportional to 350,861.20, 525,514.20 and 271,718.80 is: 406,976.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,861.20 : 525,514.20 = 271,718.80 : x
  2. Step 2: Convert to fraction form
    350,861.20/525,514.20 = 271,718.80/x
  3. Step 3: Cross multiply
    350,861.20x = 525,514.20 × 271,718.80
  4. Step 4: Simplify right side
    350,861.20x = 142,792,087,806.96
  5. Step 5: Solve for x
    x = 142,792,087,806.96/350,861.20
  6. Step 6: Final answer
    x = 406,976.00

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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.