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Finding the Fourth Proportional to 570,989.87, 856,563.48 and 191,940.04

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Solution

The fourth proportional to 570,989.87, 856,563.48 and 191,940.04 is: 287,936.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,989.87 : 856,563.48 = 191,940.04 : x
  2. Step 2: Convert to fraction form
    570,989.87/856,563.48 = 191,940.04/x
  3. Step 3: Cross multiply
    570,989.87x = 856,563.48 × 191,940.04
  4. Step 4: Simplify right side
    570,989.87x = 164,408,827,654.04
  5. Step 5: Solve for x
    x = 164,408,827,654.04/570,989.87
  6. Step 6: Final answer
    x = 287,936.51

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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.