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Finding the Fourth Proportional to 624,872.43, 862,322.24 and 338,392.44

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Solution

The fourth proportional to 624,872.43, 862,322.24 and 338,392.44 is: 466,980.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,872.43 : 862,322.24 = 338,392.44 : x
  2. Step 2: Convert to fraction form
    624,872.43/862,322.24 = 338,392.44/x
  3. Step 3: Cross multiply
    624,872.43x = 862,322.24 × 338,392.44
  4. Step 4: Simplify right side
    624,872.43x = 291,803,325,167.90
  5. Step 5: Solve for x
    x = 291,803,325,167.90/624,872.43
  6. Step 6: Final answer
    x = 466,980.64

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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.