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Finding the Fourth Proportional to 266,225.76, 399,814.56 and 255,523.20

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Solution

The fourth proportional to 266,225.76, 399,814.56 and 255,523.20 is: 383,741.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,225.76 : 399,814.56 = 255,523.20 : x
  2. Step 2: Convert to fraction form
    266,225.76/399,814.56 = 255,523.20/x
  3. Step 3: Cross multiply
    266,225.76x = 399,814.56 × 255,523.20
  4. Step 4: Simplify right side
    266,225.76x = 102,161,895,777.79
  5. Step 5: Solve for x
    x = 102,161,895,777.79/266,225.76
  6. Step 6: Final answer
    x = 383,741.59

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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.