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Finding the Fourth Proportional to 664,728.20, 997,092.30 and 533,246.60

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Solution

The fourth proportional to 664,728.20, 997,092.30 and 533,246.60 is: 799,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,728.20 : 997,092.30 = 533,246.60 : x
  2. Step 2: Convert to fraction form
    664,728.20/997,092.30 = 533,246.60/x
  3. Step 3: Cross multiply
    664,728.20x = 997,092.30 × 533,246.60
  4. Step 4: Simplify right side
    664,728.20x = 531,696,078,861.18
  5. Step 5: Solve for x
    x = 531,696,078,861.18/664,728.20
  6. Step 6: Final answer
    x = 799,869.90

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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.