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Finding the Fourth Proportional to 535,709.76, 803,581.20 and 269,481.12

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Solution

The fourth proportional to 535,709.76, 803,581.20 and 269,481.12 is: 404,230.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,709.76 : 803,581.20 = 269,481.12 : x
  2. Step 2: Convert to fraction form
    535,709.76/803,581.20 = 269,481.12/x
  3. Step 3: Cross multiply
    535,709.76x = 803,581.20 × 269,481.12
  4. Step 4: Simplify right side
    535,709.76x = 216,549,961,786.94
  5. Step 5: Solve for x
    x = 216,549,961,786.94/535,709.76
  6. Step 6: Final answer
    x = 404,230.01

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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.