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Finding the Fourth Proportional to 496,114.20, 744,171.30 and 318,967.20

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Solution

The fourth proportional to 496,114.20, 744,171.30 and 318,967.20 is: 478,450.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,114.20 : 744,171.30 = 318,967.20 : x
  2. Step 2: Convert to fraction form
    496,114.20/744,171.30 = 318,967.20/x
  3. Step 3: Cross multiply
    496,114.20x = 744,171.30 × 318,967.20
  4. Step 4: Simplify right side
    496,114.20x = 237,366,235,881.36
  5. Step 5: Solve for x
    x = 237,366,235,881.36/496,114.20
  6. Step 6: Final answer
    x = 478,450.80

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Similar ratio
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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.