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Finding the Fourth Proportional to 617,408.43, 926,143.70 and 196,717.11

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Solution

The fourth proportional to 617,408.43, 926,143.70 and 196,717.11 is: 295,085.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,408.43 : 926,143.70 = 196,717.11 : x
  2. Step 2: Convert to fraction form
    617,408.43/926,143.70 = 196,717.11/x
  3. Step 3: Cross multiply
    617,408.43x = 926,143.70 × 196,717.11
  4. Step 4: Simplify right side
    617,408.43x = 182,188,312,108.71
  5. Step 5: Solve for x
    x = 182,188,312,108.71/617,408.43
  6. Step 6: Final answer
    x = 295,085.56

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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.