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Finding the Fourth Proportional to 297,023.60, 445,276.20 and 265,530.80

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Solution

The fourth proportional to 297,023.60, 445,276.20 and 265,530.80 is: 398,064.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,023.60 : 445,276.20 = 265,530.80 : x
  2. Step 2: Convert to fraction form
    297,023.60/445,276.20 = 265,530.80/x
  3. Step 3: Cross multiply
    297,023.60x = 445,276.20 × 265,530.80
  4. Step 4: Simplify right side
    297,023.60x = 118,234,545,606.96
  5. Step 5: Solve for x
    x = 118,234,545,606.96/297,023.60
  6. Step 6: Final answer
    x = 398,064.48

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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.