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Finding the Fourth Proportional to 415,216.98, 622,341.56 and 190,601.16

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Solution

The fourth proportional to 415,216.98, 622,341.56 and 190,601.16 is: 285,679.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,216.98 : 622,341.56 = 190,601.16 : x
  2. Step 2: Convert to fraction form
    415,216.98/622,341.56 = 190,601.16/x
  3. Step 3: Cross multiply
    415,216.98x = 622,341.56 × 190,601.16
  4. Step 4: Simplify right side
    415,216.98x = 118,619,023,252.21
  5. Step 5: Solve for x
    x = 118,619,023,252.21/415,216.98
  6. Step 6: Final answer
    x = 285,679.61

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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.