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Finding the Fourth Proportional to 622,891.80, 934,289.10 and 243,738.90

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Solution

The fourth proportional to 622,891.80, 934,289.10 and 243,738.90 is: 365,589.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,891.80 : 934,289.10 = 243,738.90 : x
  2. Step 2: Convert to fraction form
    622,891.80/934,289.10 = 243,738.90/x
  3. Step 3: Cross multiply
    622,891.80x = 934,289.10 × 243,738.90
  4. Step 4: Simplify right side
    622,891.80x = 227,722,597,515.99
  5. Step 5: Solve for x
    x = 227,722,597,515.99/622,891.80
  6. Step 6: Final answer
    x = 365,589.33

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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.