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Finding the Fourth Proportional to 624,843.18, 862,284.42 and 338,363.73

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Solution

The fourth proportional to 624,843.18, 862,284.42 and 338,363.73 is: 466,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,843.18 : 862,284.42 = 338,363.73 : x
  2. Step 2: Convert to fraction form
    624,843.18/862,284.42 = 338,363.73/x
  3. Step 3: Cross multiply
    624,843.18x = 862,284.42 × 338,363.73
  4. Step 4: Simplify right side
    624,843.18x = 291,765,772,672.09
  5. Step 5: Solve for x
    x = 291,765,772,672.09/624,843.18
  6. Step 6: Final answer
    x = 466,942.40

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1.5x scale

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.