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Finding the Fourth Proportional to 425,692.52, 638,107.58 and 276,027.74

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Solution

The fourth proportional to 425,692.52, 638,107.58 and 276,027.74 is: 413,762.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,692.52 : 638,107.58 = 276,027.74 : x
  2. Step 2: Convert to fraction form
    425,692.52/638,107.58 = 276,027.74/x
  3. Step 3: Cross multiply
    425,692.52x = 638,107.58 × 276,027.74
  4. Step 4: Simplify right side
    425,692.52x = 176,135,393,184.27
  5. Step 5: Solve for x
    x = 176,135,393,184.27/425,692.52
  6. Step 6: Final answer
    x = 413,762.01

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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.