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Finding the Fourth Proportional to 488,558.20, 732,837.30 and 320,596.60

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Solution

The fourth proportional to 488,558.20, 732,837.30 and 320,596.60 is: 480,894.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,558.20 : 732,837.30 = 320,596.60 : x
  2. Step 2: Convert to fraction form
    488,558.20/732,837.30 = 320,596.60/x
  3. Step 3: Cross multiply
    488,558.20x = 732,837.30 × 320,596.60
  4. Step 4: Simplify right side
    488,558.20x = 234,945,146,733.18
  5. Step 5: Solve for x
    x = 234,945,146,733.18/488,558.20
  6. Step 6: Final answer
    x = 480,894.90

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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.