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Finding the Fourth Proportional to 402,195.80, 603,293.70 and 267,476.60

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Solution

The fourth proportional to 402,195.80, 603,293.70 and 267,476.60 is: 401,214.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,195.80 : 603,293.70 = 267,476.60 : x
  2. Step 2: Convert to fraction form
    402,195.80/603,293.70 = 267,476.60/x
  3. Step 3: Cross multiply
    402,195.80x = 603,293.70 × 267,476.60
  4. Step 4: Simplify right side
    402,195.80x = 161,366,947,677.42
  5. Step 5: Solve for x
    x = 161,366,947,677.42/402,195.80
  6. Step 6: Final answer
    x = 401,214.90

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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.