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Finding the Fourth Proportional to 3,948,900.28, 5,923,350.42 and 957,084.28

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Solution

The fourth proportional to 3,948,900.28, 5,923,350.42 and 957,084.28 is: 1,435,626.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948,900.28 : 5,923,350.42 = 957,084.28 : x
  2. Step 2: Convert to fraction form
    3,948,900.28/5,923,350.42 = 957,084.28/x
  3. Step 3: Cross multiply
    3,948,900.28x = 5,923,350.42 × 957,084.28
  4. Step 4: Simplify right side
    3,948,900.28x = 5,669,145,571,913.40
  5. Step 5: Solve for x
    x = 5,669,145,571,913.40/3,948,900.28
  6. Step 6: Final answer
    x = 1,435,626.42

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Double scale
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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.