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Finding the Fourth Proportional to 470,190.80, 705,286.20 and 446,862.80

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Solution

The fourth proportional to 470,190.80, 705,286.20 and 446,862.80 is: 670,294.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,190.80 : 705,286.20 = 446,862.80 : x
  2. Step 2: Convert to fraction form
    470,190.80/705,286.20 = 446,862.80/x
  3. Step 3: Cross multiply
    470,190.80x = 705,286.20 × 446,862.80
  4. Step 4: Simplify right side
    470,190.80x = 315,166,166,133.36
  5. Step 5: Solve for x
    x = 315,166,166,133.36/470,190.80
  6. Step 6: Final answer
    x = 670,294.20

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Similar ratio
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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.