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Finding the Fourth Proportional to 366,376.16, 505,604.36 and 213,410.43

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Solution

The fourth proportional to 366,376.16, 505,604.36 and 213,410.43 is: 294,509.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,376.16 : 505,604.36 = 213,410.43 : x
  2. Step 2: Convert to fraction form
    366,376.16/505,604.36 = 213,410.43/x
  3. Step 3: Cross multiply
    366,376.16x = 505,604.36 × 213,410.43
  4. Step 4: Simplify right side
    366,376.16x = 107,901,244,411.00
  5. Step 5: Solve for x
    x = 107,901,244,411.00/366,376.16
  6. Step 6: Final answer
    x = 294,509.46

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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.