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Finding the Fourth Proportional to 366,784.32, 506,383.20 and 239,672.64

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Solution

The fourth proportional to 366,784.32, 506,383.20 and 239,672.64 is: 330,892.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,784.32 : 506,383.20 = 239,672.64 : x
  2. Step 2: Convert to fraction form
    366,784.32/506,383.20 = 239,672.64/x
  3. Step 3: Cross multiply
    366,784.32x = 506,383.20 × 239,672.64
  4. Step 4: Simplify right side
    366,784.32x = 121,366,198,395.65
  5. Step 5: Solve for x
    x = 121,366,198,395.65/366,784.32
  6. Step 6: Final answer
    x = 330,892.55

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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.