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Finding the Fourth Proportional to 647,543.30, 970,926.15 and 332,615.30

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Solution

The fourth proportional to 647,543.30, 970,926.15 and 332,615.30 is: 498,723.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,543.30 : 970,926.15 = 332,615.30 : x
  2. Step 2: Convert to fraction form
    647,543.30/970,926.15 = 332,615.30/x
  3. Step 3: Cross multiply
    647,543.30x = 970,926.15 × 332,615.30
  4. Step 4: Simplify right side
    647,543.30x = 322,944,892,660.10
  5. Step 5: Solve for x
    x = 322,944,892,660.10/647,543.30
  6. Step 6: Final answer
    x = 498,723.24

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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.