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Finding the Fourth Proportional to 372,272.40, 558,408.60 and 230,554.80

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Solution

The fourth proportional to 372,272.40, 558,408.60 and 230,554.80 is: 345,832.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,272.40 : 558,408.60 = 230,554.80 : x
  2. Step 2: Convert to fraction form
    372,272.40/558,408.60 = 230,554.80/x
  3. Step 3: Cross multiply
    372,272.40x = 558,408.60 × 230,554.80
  4. Step 4: Simplify right side
    372,272.40x = 128,743,783,091.28
  5. Step 5: Solve for x
    x = 128,743,783,091.28/372,272.40
  6. Step 6: Final answer
    x = 345,832.20

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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.