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Finding the Fourth Proportional to 266,522.57, 399,853.10 and 79,534.07

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Solution

The fourth proportional to 266,522.57, 399,853.10 and 79,534.07 is: 119,321.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,522.57 : 399,853.10 = 79,534.07 : x
  2. Step 2: Convert to fraction form
    266,522.57/399,853.10 = 79,534.07/x
  3. Step 3: Cross multiply
    266,522.57x = 399,853.10 × 79,534.07
  4. Step 4: Simplify right side
    266,522.57x = 31,801,942,445.85
  5. Step 5: Solve for x
    x = 31,801,942,445.85/266,522.57
  6. Step 6: Final answer
    x = 119,321.76

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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.