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Finding the Fourth Proportional to 508,818.92, 763,296.62 and 269,048.79

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Solution

The fourth proportional to 508,818.92, 763,296.62 and 269,048.79 is: 403,609.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,818.92 : 763,296.62 = 269,048.79 : x
  2. Step 2: Convert to fraction form
    508,818.92/763,296.62 = 269,048.79/x
  3. Step 3: Cross multiply
    508,818.92x = 763,296.62 × 269,048.79
  4. Step 4: Simplify right side
    508,818.92x = 205,364,030,676.85
  5. Step 5: Solve for x
    x = 205,364,030,676.85/508,818.92
  6. Step 6: Final answer
    x = 403,609.27

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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.