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Finding the Fourth Proportional to 425,855.28, 637,692.06 and 413,241.96

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Solution

The fourth proportional to 425,855.28, 637,692.06 and 413,241.96 is: 618,804.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,855.28 : 637,692.06 = 413,241.96 : x
  2. Step 2: Convert to fraction form
    425,855.28/637,692.06 = 413,241.96/x
  3. Step 3: Cross multiply
    425,855.28x = 637,692.06 × 413,241.96
  4. Step 4: Simplify right side
    425,855.28x = 263,521,116,750.84
  5. Step 5: Solve for x
    x = 263,521,116,750.84/425,855.28
  6. Step 6: Final answer
    x = 618,804.39

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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.