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Finding the Fourth Proportional to 325,438.20, 487,206.90 and 232,126.20

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Solution

The fourth proportional to 325,438.20, 487,206.90 and 232,126.20 is: 347,511.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,438.20 : 487,206.90 = 232,126.20 : x
  2. Step 2: Convert to fraction form
    325,438.20/487,206.90 = 232,126.20/x
  3. Step 3: Cross multiply
    325,438.20x = 487,206.90 × 232,126.20
  4. Step 4: Simplify right side
    325,438.20x = 113,093,486,310.78
  5. Step 5: Solve for x
    x = 113,093,486,310.78/325,438.20
  6. Step 6: Final answer
    x = 347,511.41

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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.