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Finding the Fourth Proportional to 484,759.32, 668,979.60 and 269,913.90

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Solution

The fourth proportional to 484,759.32, 668,979.60 and 269,913.90 is: 372,487.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,759.32 : 668,979.60 = 269,913.90 : x
  2. Step 2: Convert to fraction form
    484,759.32/668,979.60 = 269,913.90/x
  3. Step 3: Cross multiply
    484,759.32x = 668,979.60 × 269,913.90
  4. Step 4: Simplify right side
    484,759.32x = 180,566,892,856.44
  5. Step 5: Solve for x
    x = 180,566,892,856.44/484,759.32
  6. Step 6: Final answer
    x = 372,487.72

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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.