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Finding the Fourth Proportional to 351,290.41, 484,871.60 and 229,087.41

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Solution

The fourth proportional to 351,290.41, 484,871.60 and 229,087.41 is: 316,199.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,290.41 : 484,871.60 = 229,087.41 : x
  2. Step 2: Convert to fraction form
    351,290.41/484,871.60 = 229,087.41/x
  3. Step 3: Cross multiply
    351,290.41x = 484,871.60 × 229,087.41
  4. Step 4: Simplify right side
    351,290.41x = 111,077,979,026.56
  5. Step 5: Solve for x
    x = 111,077,979,026.56/351,290.41
  6. Step 6: Final answer
    x = 316,199.86

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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.