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Finding the Fourth Proportional to 294,491.80, 441,737.70 and 261,832.60

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Solution

The fourth proportional to 294,491.80, 441,737.70 and 261,832.60 is: 392,748.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,491.80 : 441,737.70 = 261,832.60 : x
  2. Step 2: Convert to fraction form
    294,491.80/441,737.70 = 261,832.60/x
  3. Step 3: Cross multiply
    294,491.80x = 441,737.70 × 261,832.60
  4. Step 4: Simplify right side
    294,491.80x = 115,661,330,509.02
  5. Step 5: Solve for x
    x = 115,661,330,509.02/294,491.80
  6. Step 6: Final answer
    x = 392,748.90

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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.