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Finding the Fourth Proportional to 468,122.40, 702,183.60 and 455,000.40

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Solution

The fourth proportional to 468,122.40, 702,183.60 and 455,000.40 is: 682,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,122.40 : 702,183.60 = 455,000.40 : x
  2. Step 2: Convert to fraction form
    468,122.40/702,183.60 = 455,000.40/x
  3. Step 3: Cross multiply
    468,122.40x = 702,183.60 × 455,000.40
  4. Step 4: Simplify right side
    468,122.40x = 319,493,818,873.44
  5. Step 5: Solve for x
    x = 319,493,818,873.44/468,122.40
  6. Step 6: Final answer
    x = 682,500.60

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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.