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Finding the Fourth Proportional to 445,976.94, 615,449.84 and 242,027.85

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Solution

The fourth proportional to 445,976.94, 615,449.84 and 242,027.85 is: 333,999.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,976.94 : 615,449.84 = 242,027.85 : x
  2. Step 2: Convert to fraction form
    445,976.94/615,449.84 = 242,027.85/x
  3. Step 3: Cross multiply
    445,976.94x = 615,449.84 × 242,027.85
  4. Step 4: Simplify right side
    445,976.94x = 148,956,000,347.91
  5. Step 5: Solve for x
    x = 148,956,000,347.91/445,976.94
  6. Step 6: Final answer
    x = 333,999.33

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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.