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Finding the Fourth Proportional to 264,900.30, 397,350.45 and 251,421.90

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Solution

The fourth proportional to 264,900.30, 397,350.45 and 251,421.90 is: 377,132.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,900.30 : 397,350.45 = 251,421.90 : x
  2. Step 2: Convert to fraction form
    264,900.30/397,350.45 = 251,421.90/x
  3. Step 3: Cross multiply
    264,900.30x = 397,350.45 × 251,421.90
  4. Step 4: Simplify right side
    264,900.30x = 99,902,605,104.86
  5. Step 5: Solve for x
    x = 99,902,605,104.86/264,900.30
  6. Step 6: Final answer
    x = 377,132.85

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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.