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Finding the Fourth Proportional to 471,490.58, 650,204.73 and 316,791.72

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Solution

The fourth proportional to 471,490.58, 650,204.73 and 316,791.72 is: 436,868.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,490.58 : 650,204.73 = 316,791.72 : x
  2. Step 2: Convert to fraction form
    471,490.58/650,204.73 = 316,791.72/x
  3. Step 3: Cross multiply
    471,490.58x = 650,204.73 × 316,791.72
  4. Step 4: Simplify right side
    471,490.58x = 205,979,474,768.84
  5. Step 5: Solve for x
    x = 205,979,474,768.84/471,490.58
  6. Step 6: Final answer
    x = 436,868.70

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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.