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Finding the Fourth Proportional to 607,396.62, 911,205.65 and 303,949.46

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Solution

The fourth proportional to 607,396.62, 911,205.65 and 303,949.46 is: 455,979.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,396.62 : 911,205.65 = 303,949.46 : x
  2. Step 2: Convert to fraction form
    607,396.62/911,205.65 = 303,949.46/x
  3. Step 3: Cross multiply
    607,396.62x = 911,205.65 × 303,949.46
  4. Step 4: Simplify right side
    607,396.62x = 276,960,460,614.68
  5. Step 5: Solve for x
    x = 276,960,460,614.68/607,396.62
  6. Step 6: Final answer
    x = 455,979.59

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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.