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Finding the Fourth Proportional to 293,605.80, 440,408.70 and 230,620.20

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Solution

The fourth proportional to 293,605.80, 440,408.70 and 230,620.20 is: 345,930.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,605.80 : 440,408.70 = 230,620.20 : x
  2. Step 2: Convert to fraction form
    293,605.80/440,408.70 = 230,620.20/x
  3. Step 3: Cross multiply
    293,605.80x = 440,408.70 × 230,620.20
  4. Step 4: Simplify right side
    293,605.80x = 101,567,142,475.74
  5. Step 5: Solve for x
    x = 101,567,142,475.74/293,605.80
  6. Step 6: Final answer
    x = 345,930.30

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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.