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Finding the Fourth Proportional to 3,948,839.40, 5,923,259.12 and 957,023.40

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Solution

The fourth proportional to 3,948,839.40, 5,923,259.12 and 957,023.40 is: 1,435,535.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948,839.40 : 5,923,259.12 = 957,023.40 : x
  2. Step 2: Convert to fraction form
    3,948,839.40/5,923,259.12 = 957,023.40/x
  3. Step 3: Cross multiply
    3,948,839.40x = 5,923,259.12 × 957,023.40
  4. Step 4: Simplify right side
    3,948,839.40x = 5,668,697,582,103.41
  5. Step 5: Solve for x
    x = 5,668,697,582,103.41/3,948,839.40
  6. Step 6: Final answer
    x = 1,435,535.10

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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.