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Finding the Fourth Proportional to 265,176.44, 397,764.65 and 218,330.90

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Solution

The fourth proportional to 265,176.44, 397,764.65 and 218,330.90 is: 327,496.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,176.44 : 397,764.65 = 218,330.90 : x
  2. Step 2: Convert to fraction form
    265,176.44/397,764.65 = 218,330.90/x
  3. Step 3: Cross multiply
    265,176.44x = 397,764.65 × 218,330.90
  4. Step 4: Simplify right side
    265,176.44x = 86,844,312,579.69
  5. Step 5: Solve for x
    x = 86,844,312,579.69/265,176.44
  6. Step 6: Final answer
    x = 327,496.34

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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.