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Finding the Fourth Proportional to 311,549.40, 466,990.38 and 222,532.92

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Solution

The fourth proportional to 311,549.40, 466,990.38 and 222,532.92 is: 333,561.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,549.40 : 466,990.38 = 222,532.92 : x
  2. Step 2: Convert to fraction form
    311,549.40/466,990.38 = 222,532.92/x
  3. Step 3: Cross multiply
    311,549.40x = 466,990.38 × 222,532.92
  4. Step 4: Simplify right side
    311,549.40x = 103,920,732,873.31
  5. Step 5: Solve for x
    x = 103,920,732,873.31/311,549.40
  6. Step 6: Final answer
    x = 333,561.01

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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.