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Finding the Fourth Proportional to 647,558.60, 971,337.90 and 367,622.60

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Solution

The fourth proportional to 647,558.60, 971,337.90 and 367,622.60 is: 551,433.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,558.60 : 971,337.90 = 367,622.60 : x
  2. Step 2: Convert to fraction form
    647,558.60/971,337.90 = 367,622.60/x
  3. Step 3: Cross multiply
    647,558.60x = 971,337.90 × 367,622.60
  4. Step 4: Simplify right side
    647,558.60x = 357,085,764,276.54
  5. Step 5: Solve for x
    x = 357,085,764,276.54/647,558.60
  6. Step 6: Final answer
    x = 551,433.90

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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.