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Finding the Fourth Proportional to 402,757.11, 604,103.90 and 234,169.88

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Solution

The fourth proportional to 402,757.11, 604,103.90 and 234,169.88 is: 351,236.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,757.11 : 604,103.90 = 234,169.88 : x
  2. Step 2: Convert to fraction form
    402,757.11/604,103.90 = 234,169.88/x
  3. Step 3: Cross multiply
    402,757.11x = 604,103.90 × 234,169.88
  4. Step 4: Simplify right side
    402,757.11x = 141,462,933,579.16
  5. Step 5: Solve for x
    x = 141,462,933,579.16/402,757.11
  6. Step 6: Final answer
    x = 351,236.34

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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.