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Finding the Fourth Proportional to 605,195.70, 907,793.55 and 416,238.90

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Solution

The fourth proportional to 605,195.70, 907,793.55 and 416,238.90 is: 624,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,195.70 : 907,793.55 = 416,238.90 : x
  2. Step 2: Convert to fraction form
    605,195.70/907,793.55 = 416,238.90/x
  3. Step 3: Cross multiply
    605,195.70x = 907,793.55 × 416,238.90
  4. Step 4: Simplify right side
    605,195.70x = 377,858,988,679.10
  5. Step 5: Solve for x
    x = 377,858,988,679.10/605,195.70
  6. Step 6: Final answer
    x = 624,358.35

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Similar ratio
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1.5x scale

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.