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Finding the Fourth Proportional to 494,408.40, 741,569.40 and 161,984.40

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Solution

The fourth proportional to 494,408.40, 741,569.40 and 161,984.40 is: 242,962.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,408.40 : 741,569.40 = 161,984.40 : x
  2. Step 2: Convert to fraction form
    494,408.40/741,569.40 = 161,984.40/x
  3. Step 3: Cross multiply
    494,408.40x = 741,569.40 × 161,984.40
  4. Step 4: Simplify right side
    494,408.40x = 120,122,674,317.36
  5. Step 5: Solve for x
    x = 120,122,674,317.36/494,408.40
  6. Step 6: Final answer
    x = 242,962.45

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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.