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Finding the Fourth Proportional to 323,729.10, 485,593.65 and 294,698.70

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Solution

The fourth proportional to 323,729.10, 485,593.65 and 294,698.70 is: 442,048.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,729.10 : 485,593.65 = 294,698.70 : x
  2. Step 2: Convert to fraction form
    323,729.10/485,593.65 = 294,698.70/x
  3. Step 3: Cross multiply
    323,729.10x = 485,593.65 × 294,698.70
  4. Step 4: Simplify right side
    323,729.10x = 143,103,817,383.26
  5. Step 5: Solve for x
    x = 143,103,817,383.26/323,729.10
  6. Step 6: Final answer
    x = 442,048.05

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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.