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Finding the Fourth Proportional to 543,288.80, 814,933.20 and 277,568.30

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Solution

The fourth proportional to 543,288.80, 814,933.20 and 277,568.30 is: 416,352.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,288.80 : 814,933.20 = 277,568.30 : x
  2. Step 2: Convert to fraction form
    543,288.80/814,933.20 = 277,568.30/x
  3. Step 3: Cross multiply
    543,288.80x = 814,933.20 × 277,568.30
  4. Step 4: Simplify right side
    543,288.80x = 226,199,622,937.56
  5. Step 5: Solve for x
    x = 226,199,622,937.56/543,288.80
  6. Step 6: Final answer
    x = 416,352.45

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Double scale
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Similar ratio
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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.