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Finding the Fourth Proportional to 320,372.17, 480,755.90 and 162,713.77

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Solution

The fourth proportional to 320,372.17, 480,755.90 and 162,713.77 is: 244,171.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,372.17 : 480,755.90 = 162,713.77 : x
  2. Step 2: Convert to fraction form
    320,372.17/480,755.90 = 162,713.77/x
  3. Step 3: Cross multiply
    320,372.17x = 480,755.90 × 162,713.77
  4. Step 4: Simplify right side
    320,372.17x = 78,225,604,125.17
  5. Step 5: Solve for x
    x = 78,225,604,125.17/320,372.17
  6. Step 6: Final answer
    x = 244,171.03

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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.