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Finding the Fourth Proportional to 322,403.70, 483,609.60 and 97,766.40

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Solution

The fourth proportional to 322,403.70, 483,609.60 and 97,766.40 is: 146,650.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,403.70 : 483,609.60 = 97,766.40 : x
  2. Step 2: Convert to fraction form
    322,403.70/483,609.60 = 97,766.40/x
  3. Step 3: Cross multiply
    322,403.70x = 483,609.60 × 97,766.40
  4. Step 4: Simplify right side
    322,403.70x = 47,280,769,597.44
  5. Step 5: Solve for x
    x = 47,280,769,597.44/322,403.70
  6. Step 6: Final answer
    x = 146,650.83

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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.