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Finding the Fourth Proportional to 462,336.86, 638,019.89 and 255,604.36

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Solution

The fourth proportional to 462,336.86, 638,019.89 and 255,604.36 is: 352,731.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,336.86 : 638,019.89 = 255,604.36 : x
  2. Step 2: Convert to fraction form
    462,336.86/638,019.89 = 255,604.36/x
  3. Step 3: Cross multiply
    462,336.86x = 638,019.89 × 255,604.36
  4. Step 4: Simplify right side
    462,336.86x = 163,080,664,932.45
  5. Step 5: Solve for x
    x = 163,080,664,932.45/462,336.86
  6. Step 6: Final answer
    x = 352,731.26

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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.