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Finding the Fourth Proportional to 309,179.25, 426,667.41 and 175,043.25

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Solution

The fourth proportional to 309,179.25, 426,667.41 and 175,043.25 is: 241,559.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,179.25 : 426,667.41 = 175,043.25 : x
  2. Step 2: Convert to fraction form
    309,179.25/426,667.41 = 175,043.25/x
  3. Step 3: Cross multiply
    309,179.25x = 426,667.41 × 175,043.25
  4. Step 4: Simplify right side
    309,179.25x = 74,685,250,115.48
  5. Step 5: Solve for x
    x = 74,685,250,115.48/309,179.25
  6. Step 6: Final answer
    x = 241,559.71

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1.5x scale

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.