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Finding the Fourth Proportional to 266,444.20, 399,666.30 and 224,453.80

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Solution

The fourth proportional to 266,444.20, 399,666.30 and 224,453.80 is: 336,680.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,444.20 : 399,666.30 = 224,453.80 : x
  2. Step 2: Convert to fraction form
    266,444.20/399,666.30 = 224,453.80/x
  3. Step 3: Cross multiply
    266,444.20x = 399,666.30 × 224,453.80
  4. Step 4: Simplify right side
    266,444.20x = 89,706,619,766.94
  5. Step 5: Solve for x
    x = 89,706,619,766.94/266,444.20
  6. Step 6: Final answer
    x = 336,680.70

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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.