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Finding the Fourth Proportional to 267,408.70, 401,113.05 and 214,920.70

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Solution

The fourth proportional to 267,408.70, 401,113.05 and 214,920.70 is: 322,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,408.70 : 401,113.05 = 214,920.70 : x
  2. Step 2: Convert to fraction form
    267,408.70/401,113.05 = 214,920.70/x
  3. Step 3: Cross multiply
    267,408.70x = 401,113.05 × 214,920.70
  4. Step 4: Simplify right side
    267,408.70x = 86,207,497,485.14
  5. Step 5: Solve for x
    x = 86,207,497,485.14/267,408.70
  6. Step 6: Final answer
    x = 322,381.05

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1.5x scale

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.