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Finding the Fourth Proportional to 601,638.28, 901,850.12 and 377,156.40

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Solution

The fourth proportional to 601,638.28, 901,850.12 and 377,156.40 is: 565,353.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,638.28 : 901,850.12 = 377,156.40 : x
  2. Step 2: Convert to fraction form
    601,638.28/901,850.12 = 377,156.40/x
  3. Step 3: Cross multiply
    601,638.28x = 901,850.12 × 377,156.40
  4. Step 4: Simplify right side
    601,638.28x = 340,138,540,745.39
  5. Step 5: Solve for x
    x = 340,138,540,745.39/601,638.28
  6. Step 6: Final answer
    x = 565,353.89

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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.