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Finding the Fourth Proportional to 496,286.70, 744,430.05 and 446,520.30

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Solution

The fourth proportional to 496,286.70, 744,430.05 and 446,520.30 is: 669,780.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,286.70 : 744,430.05 = 446,520.30 : x
  2. Step 2: Convert to fraction form
    496,286.70/744,430.05 = 446,520.30/x
  3. Step 3: Cross multiply
    496,286.70x = 744,430.05 × 446,520.30
  4. Step 4: Simplify right side
    496,286.70x = 332,403,129,255.02
  5. Step 5: Solve for x
    x = 332,403,129,255.02/496,286.70
  6. Step 6: Final answer
    x = 669,780.45

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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.