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Finding the Fourth Proportional to 408,049.90, 610,692.45 and 408,049.90

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Solution

The fourth proportional to 408,049.90, 610,692.45 and 408,049.90 is: 610,692.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,049.90 : 610,692.45 = 408,049.90 : x
  2. Step 2: Convert to fraction form
    408,049.90/610,692.45 = 408,049.90/x
  3. Step 3: Cross multiply
    408,049.90x = 610,692.45 × 408,049.90
  4. Step 4: Simplify right side
    408,049.90x = 249,192,993,153.26
  5. Step 5: Solve for x
    x = 249,192,993,153.26/408,049.90
  6. Step 6: Final answer
    x = 610,692.45

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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.