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Finding the Fourth Proportional to 505,797.37, 697,992.21 and 276,349.75

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Solution

The fourth proportional to 505,797.37, 697,992.21 and 276,349.75 is: 381,358.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,797.37 : 697,992.21 = 276,349.75 : x
  2. Step 2: Convert to fraction form
    505,797.37/697,992.21 = 276,349.75/x
  3. Step 3: Cross multiply
    505,797.37x = 697,992.21 × 276,349.75
  4. Step 4: Simplify right side
    505,797.37x = 192,889,970,990.47
  5. Step 5: Solve for x
    x = 192,889,970,990.47/505,797.37
  6. Step 6: Final answer
    x = 381,358.19

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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.