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Finding the Fourth Proportional to 481,622.81, 665,086.24 and 360,553.88

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Solution

The fourth proportional to 481,622.81, 665,086.24 and 360,553.88 is: 497,898.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,622.81 : 665,086.24 = 360,553.88 : x
  2. Step 2: Convert to fraction form
    481,622.81/665,086.24 = 360,553.88/x
  3. Step 3: Cross multiply
    481,622.81x = 665,086.24 × 360,553.88
  4. Step 4: Simplify right side
    481,622.81x = 239,799,426,480.02
  5. Step 5: Solve for x
    x = 239,799,426,480.02/481,622.81
  6. Step 6: Final answer
    x = 497,898.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.