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Finding the Fourth Proportional to 570,913.59, 856,102.20 and 331,095.66

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Solution

The fourth proportional to 570,913.59, 856,102.20 and 331,095.66 is: 496,487.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,913.59 : 856,102.20 = 331,095.66 : x
  2. Step 2: Convert to fraction form
    570,913.59/856,102.20 = 331,095.66/x
  3. Step 3: Cross multiply
    570,913.59x = 856,102.20 × 331,095.66
  4. Step 4: Simplify right side
    570,913.59x = 283,451,722,936.45
  5. Step 5: Solve for x
    x = 283,451,722,936.45/570,913.59
  6. Step 6: Final answer
    x = 496,487.96

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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.