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Finding the Fourth Proportional to 476,404.46, 657,439.25 and 261,558.37

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Solution

The fourth proportional to 476,404.46, 657,439.25 and 261,558.37 is: 360,951.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,404.46 : 657,439.25 = 261,558.37 : x
  2. Step 2: Convert to fraction form
    476,404.46/657,439.25 = 261,558.37/x
  3. Step 3: Cross multiply
    476,404.46x = 657,439.25 × 261,558.37
  4. Step 4: Simplify right side
    476,404.46x = 171,958,738,604.02
  5. Step 5: Solve for x
    x = 171,958,738,604.02/476,404.46
  6. Step 6: Final answer
    x = 360,951.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.