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Finding the Fourth Proportional to 396,875.70, 595,313.55 and 263,322.90

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Solution

The fourth proportional to 396,875.70, 595,313.55 and 263,322.90 is: 394,984.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,875.70 : 595,313.55 = 263,322.90 : x
  2. Step 2: Convert to fraction form
    396,875.70/595,313.55 = 263,322.90/x
  3. Step 3: Cross multiply
    396,875.70x = 595,313.55 × 263,322.90
  4. Step 4: Simplify right side
    396,875.70x = 156,759,690,395.30
  5. Step 5: Solve for x
    x = 156,759,690,395.30/396,875.70
  6. Step 6: Final answer
    x = 394,984.35

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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.