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Finding the Fourth Proportional to 421,033.72, 581,025.64 and 230,048.48

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Solution

The fourth proportional to 421,033.72, 581,025.64 and 230,048.48 is: 317,466.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,033.72 : 581,025.64 = 230,048.48 : x
  2. Step 2: Convert to fraction form
    421,033.72/581,025.64 = 230,048.48/x
  3. Step 3: Cross multiply
    421,033.72x = 581,025.64 × 230,048.48
  4. Step 4: Simplify right side
    421,033.72x = 133,664,065,323.03
  5. Step 5: Solve for x
    x = 133,664,065,323.03/421,033.72
  6. Step 6: Final answer
    x = 317,466.41

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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.