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Finding the Fourth Proportional to 496,170.40, 744,025.20 and 215,543.20

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Solution

The fourth proportional to 496,170.40, 744,025.20 and 215,543.20 is: 323,214.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,170.40 : 744,025.20 = 215,543.20 : x
  2. Step 2: Convert to fraction form
    496,170.40/744,025.20 = 215,543.20/x
  3. Step 3: Cross multiply
    496,170.40x = 744,025.20 × 215,543.20
  4. Step 4: Simplify right side
    496,170.40x = 160,369,572,488.64
  5. Step 5: Solve for x
    x = 160,369,572,488.64/496,170.40
  6. Step 6: Final answer
    x = 323,214.71

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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.