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Finding the Fourth Proportional to 313,230.30, 469,517.40 and 123,617.40

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Solution

The fourth proportional to 313,230.30, 469,517.40 and 123,617.40 is: 185,296.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,230.30 : 469,517.40 = 123,617.40 : x
  2. Step 2: Convert to fraction form
    313,230.30/469,517.40 = 123,617.40/x
  3. Step 3: Cross multiply
    313,230.30x = 469,517.40 × 123,617.40
  4. Step 4: Simplify right side
    313,230.30x = 58,040,520,242.76
  5. Step 5: Solve for x
    x = 58,040,520,242.76/313,230.30
  6. Step 6: Final answer
    x = 185,296.63

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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.