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Finding the Fourth Proportional to 266,448.20, 399,672.30 and 224,457.80

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Solution

The fourth proportional to 266,448.20, 399,672.30 and 224,457.80 is: 336,686.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,448.20 : 399,672.30 = 224,457.80 : x
  2. Step 2: Convert to fraction form
    266,448.20/399,672.30 = 224,457.80/x
  3. Step 3: Cross multiply
    266,448.20x = 399,672.30 × 224,457.80
  4. Step 4: Simplify right side
    266,448.20x = 89,709,565,178.94
  5. Step 5: Solve for x
    x = 89,709,565,178.94/266,448.20
  6. Step 6: Final answer
    x = 336,686.70

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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.