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Finding the Fourth Proportional to 652,235.25, 978,341.34 and 267,900.90

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Solution

The fourth proportional to 652,235.25, 978,341.34 and 267,900.90 is: 401,846.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,235.25 : 978,341.34 = 267,900.90 : x
  2. Step 2: Convert to fraction form
    652,235.25/978,341.34 = 267,900.90/x
  3. Step 3: Cross multiply
    652,235.25x = 978,341.34 × 267,900.90
  4. Step 4: Simplify right side
    652,235.25x = 262,098,525,493.21
  5. Step 5: Solve for x
    x = 262,098,525,493.21/652,235.25
  6. Step 6: Final answer
    x = 401,846.61

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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.