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Finding the Fourth Proportional to 543,303.28, 814,954.20 and 206,343.28

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Solution

The fourth proportional to 543,303.28, 814,954.20 and 206,343.28 is: 309,514.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,303.28 : 814,954.20 = 206,343.28 : x
  2. Step 2: Convert to fraction form
    543,303.28/814,954.20 = 206,343.28/x
  3. Step 3: Cross multiply
    543,303.28x = 814,954.20 × 206,343.28
  4. Step 4: Simplify right side
    543,303.28x = 168,160,322,677.78
  5. Step 5: Solve for x
    x = 168,160,322,677.78/543,303.28
  6. Step 6: Final answer
    x = 309,514.65

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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.