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Finding the Fourth Proportional to 275,697.60, 413,546.40 and 76,048.80

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Solution

The fourth proportional to 275,697.60, 413,546.40 and 76,048.80 is: 114,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,697.60 : 413,546.40 = 76,048.80 : x
  2. Step 2: Convert to fraction form
    275,697.60/413,546.40 = 76,048.80/x
  3. Step 3: Cross multiply
    275,697.60x = 413,546.40 × 76,048.80
  4. Step 4: Simplify right side
    275,697.60x = 31,449,707,464.32
  5. Step 5: Solve for x
    x = 31,449,707,464.32/275,697.60
  6. Step 6: Final answer
    x = 114,073.20

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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.