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Finding the Fourth Proportional to 500,585.02, 690,801.60 and 271,137.94

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Solution

The fourth proportional to 500,585.02, 690,801.60 and 271,137.94 is: 374,167.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,585.02 : 690,801.60 = 271,137.94 : x
  2. Step 2: Convert to fraction form
    500,585.02/690,801.60 = 271,137.94/x
  3. Step 3: Cross multiply
    500,585.02x = 690,801.60 × 271,137.94
  4. Step 4: Simplify right side
    500,585.02x = 187,302,522,772.70
  5. Step 5: Solve for x
    x = 187,302,522,772.70/500,585.02
  6. Step 6: Final answer
    x = 374,167.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.