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Finding the Fourth Proportional to 302,491.80, 453,737.70 and 269,832.60

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Solution

The fourth proportional to 302,491.80, 453,737.70 and 269,832.60 is: 404,748.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,491.80 : 453,737.70 = 269,832.60 : x
  2. Step 2: Convert to fraction form
    302,491.80/453,737.70 = 269,832.60/x
  3. Step 3: Cross multiply
    302,491.80x = 453,737.70 × 269,832.60
  4. Step 4: Simplify right side
    302,491.80x = 122,433,223,309.02
  5. Step 5: Solve for x
    x = 122,433,223,309.02/302,491.80
  6. Step 6: Final answer
    x = 404,748.90

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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.