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Finding the Fourth Proportional to 611,698.44, 917,042.50 and 269,898.53

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Solution

The fourth proportional to 611,698.44, 917,042.50 and 269,898.53 is: 404,624.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,698.44 : 917,042.50 = 269,898.53 : x
  2. Step 2: Convert to fraction form
    611,698.44/917,042.50 = 269,898.53/x
  3. Step 3: Cross multiply
    611,698.44x = 917,042.50 × 269,898.53
  4. Step 4: Simplify right side
    611,698.44x = 247,508,422,697.53
  5. Step 5: Solve for x
    x = 247,508,422,697.53/611,698.44
  6. Step 6: Final answer
    x = 404,624.90

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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.