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Finding the Fourth Proportional to 405,372.97, 559,406.46 and 224,092.54

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Solution

The fourth proportional to 405,372.97, 559,406.46 and 224,092.54 is: 309,243.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,372.97 : 559,406.46 = 224,092.54 : x
  2. Step 2: Convert to fraction form
    405,372.97/559,406.46 = 224,092.54/x
  3. Step 3: Cross multiply
    405,372.97x = 559,406.46 × 224,092.54
  4. Step 4: Simplify right side
    405,372.97x = 125,358,814,513.81
  5. Step 5: Solve for x
    x = 125,358,814,513.81/405,372.97
  6. Step 6: Final answer
    x = 309,243.15

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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.