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Finding the Fourth Proportional to 886,640.97, 1,223,572.35 and 504,692.34

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Solution

The fourth proportional to 886,640.97, 1,223,572.35 and 504,692.34 is: 696,479.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,640.97 : 1,223,572.35 = 504,692.34 : x
  2. Step 2: Convert to fraction form
    886,640.97/1,223,572.35 = 504,692.34/x
  3. Step 3: Cross multiply
    886,640.97x = 1,223,572.35 × 504,692.34
  4. Step 4: Simplify right side
    886,640.97x = 617,527,592,480.80
  5. Step 5: Solve for x
    x = 617,527,592,480.80/886,640.97
  6. Step 6: Final answer
    x = 696,479.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.