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Finding the Fourth Proportional to 664,100.40, 996,150.60 and 383,289.60

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Solution

The fourth proportional to 664,100.40, 996,150.60 and 383,289.60 is: 574,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,100.40 : 996,150.60 = 383,289.60 : x
  2. Step 2: Convert to fraction form
    664,100.40/996,150.60 = 383,289.60/x
  3. Step 3: Cross multiply
    664,100.40x = 996,150.60 × 383,289.60
  4. Step 4: Simplify right side
    664,100.40x = 381,814,165,013.76
  5. Step 5: Solve for x
    x = 381,814,165,013.76/664,100.40
  6. Step 6: Final answer
    x = 574,934.40

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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.