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Finding the Fourth Proportional to 613,242.64, 918,769.56 and 332,580.88

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Solution

The fourth proportional to 613,242.64, 918,769.56 and 332,580.88 is: 498,277.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,242.64 : 918,769.56 = 332,580.88 : x
  2. Step 2: Convert to fraction form
    613,242.64/918,769.56 = 332,580.88/x
  3. Step 3: Cross multiply
    613,242.64x = 918,769.56 × 332,580.88
  4. Step 4: Simplify right side
    613,242.64x = 305,565,188,782.01
  5. Step 5: Solve for x
    x = 305,565,188,782.01/613,242.64
  6. Step 6: Final answer
    x = 498,277.79

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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.