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Finding the Fourth Proportional to 543,019.80, 814,140.90 and 227,314.20

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Solution

The fourth proportional to 543,019.80, 814,140.90 and 227,314.20 is: 340,808.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,019.80 : 814,140.90 = 227,314.20 : x
  2. Step 2: Convert to fraction form
    543,019.80/814,140.90 = 227,314.20/x
  3. Step 3: Cross multiply
    543,019.80x = 814,140.90 × 227,314.20
  4. Step 4: Simplify right side
    543,019.80x = 185,065,787,370.78
  5. Step 5: Solve for x
    x = 185,065,787,370.78/543,019.80
  6. Step 6: Final answer
    x = 340,808.54

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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.