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Finding the Fourth Proportional to 550,118.64, 825,007.07 and 265,632.31

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Solution

The fourth proportional to 550,118.64, 825,007.07 and 265,632.31 is: 398,365.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,118.64 : 825,007.07 = 265,632.31 : x
  2. Step 2: Convert to fraction form
    550,118.64/825,007.07 = 265,632.31/x
  3. Step 3: Cross multiply
    550,118.64x = 825,007.07 × 265,632.31
  4. Step 4: Simplify right side
    550,118.64x = 219,148,533,770.43
  5. Step 5: Solve for x
    x = 219,148,533,770.43/550,118.64
  6. Step 6: Final answer
    x = 398,365.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.