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Finding the Fourth Proportional to 483,059.60, 724,589.40 and 415,408.40

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Solution

The fourth proportional to 483,059.60, 724,589.40 and 415,408.40 is: 623,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,059.60 : 724,589.40 = 415,408.40 : x
  2. Step 2: Convert to fraction form
    483,059.60/724,589.40 = 415,408.40/x
  3. Step 3: Cross multiply
    483,059.60x = 724,589.40 × 415,408.40
  4. Step 4: Simplify right side
    483,059.60x = 301,000,523,310.96
  5. Step 5: Solve for x
    x = 301,000,523,310.96/483,059.60
  6. Step 6: Final answer
    x = 623,112.60

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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.