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Finding the Fourth Proportional to 416,890.80, 625,627.80 and 267,494.40

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Solution

The fourth proportional to 416,890.80, 625,627.80 and 267,494.40 is: 401,428.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,890.80 : 625,627.80 = 267,494.40 : x
  2. Step 2: Convert to fraction form
    416,890.80/625,627.80 = 267,494.40/x
  3. Step 3: Cross multiply
    416,890.80x = 625,627.80 × 267,494.40
  4. Step 4: Simplify right side
    416,890.80x = 167,351,932,984.32
  5. Step 5: Solve for x
    x = 167,351,932,984.32/416,890.80
  6. Step 6: Final answer
    x = 401,428.70

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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.