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Finding the Fourth Proportional to 294,586.80, 441,905.72 and 81,354.80

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Solution

The fourth proportional to 294,586.80, 441,905.72 and 81,354.80 is: 122,039.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,586.80 : 441,905.72 = 81,354.80 : x
  2. Step 2: Convert to fraction form
    294,586.80/441,905.72 = 81,354.80/x
  3. Step 3: Cross multiply
    294,586.80x = 441,905.72 × 81,354.80
  4. Step 4: Simplify right side
    294,586.80x = 35,951,151,469.46
  5. Step 5: Solve for x
    x = 35,951,151,469.46/294,586.80
  6. Step 6: Final answer
    x = 122,039.25

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1.5x scale

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.