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Finding the Fourth Proportional to 294,076.70, 441,115.05 and 266,957.90

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Solution

The fourth proportional to 294,076.70, 441,115.05 and 266,957.90 is: 400,436.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,076.70 : 441,115.05 = 266,957.90 : x
  2. Step 2: Convert to fraction form
    294,076.70/441,115.05 = 266,957.90/x
  3. Step 3: Cross multiply
    294,076.70x = 441,115.05 × 266,957.90
  4. Step 4: Simplify right side
    294,076.70x = 117,759,147,406.40
  5. Step 5: Solve for x
    x = 117,759,147,406.40/294,076.70
  6. Step 6: Final answer
    x = 400,436.85

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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.