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Finding the Fourth Proportional to 367,105.87, 505,662.19 and 259,490.89

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Solution

The fourth proportional to 367,105.87, 505,662.19 and 259,490.89 is: 357,430.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,105.87 : 505,662.19 = 259,490.89 : x
  2. Step 2: Convert to fraction form
    367,105.87/505,662.19 = 259,490.89/x
  3. Step 3: Cross multiply
    367,105.87x = 505,662.19 × 259,490.89
  4. Step 4: Simplify right side
    367,105.87x = 131,214,733,165.44
  5. Step 5: Solve for x
    x = 131,214,733,165.44/367,105.87
  6. Step 6: Final answer
    x = 357,430.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.