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Finding the Fourth Proportional to 325,294.60, 487,941.90 and 125,624.20

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Solution

The fourth proportional to 325,294.60, 487,941.90 and 125,624.20 is: 188,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,294.60 : 487,941.90 = 125,624.20 : x
  2. Step 2: Convert to fraction form
    325,294.60/487,941.90 = 125,624.20/x
  3. Step 3: Cross multiply
    325,294.60x = 487,941.90 × 125,624.20
  4. Step 4: Simplify right side
    325,294.60x = 61,297,310,833.98
  5. Step 5: Solve for x
    x = 61,297,310,833.98/325,294.60
  6. Step 6: Final answer
    x = 188,436.30

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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.