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Finding the Fourth Proportional to 619,107.52, 928,664.70 and 281,913.14

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Solution

The fourth proportional to 619,107.52, 928,664.70 and 281,913.14 is: 422,871.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,107.52 : 928,664.70 = 281,913.14 : x
  2. Step 2: Convert to fraction form
    619,107.52/928,664.70 = 281,913.14/x
  3. Step 3: Cross multiply
    619,107.52x = 928,664.70 × 281,913.14
  4. Step 4: Simplify right side
    619,107.52x = 261,802,781,584.16
  5. Step 5: Solve for x
    x = 261,802,781,584.16/619,107.52
  6. Step 6: Final answer
    x = 422,871.27

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1.5x scale

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.