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Finding the Fourth Proportional to 313,191.34, 469,633.91 and 218,466.90

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Solution

The fourth proportional to 313,191.34, 469,633.91 and 218,466.90 is: 327,593.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,191.34 : 469,633.91 = 218,466.90 : x
  2. Step 2: Convert to fraction form
    313,191.34/469,633.91 = 218,466.90/x
  3. Step 3: Cross multiply
    313,191.34x = 469,633.91 × 218,466.90
  4. Step 4: Simplify right side
    313,191.34x = 102,599,464,452.58
  5. Step 5: Solve for x
    x = 102,599,464,452.58/313,191.34
  6. Step 6: Final answer
    x = 327,593.55

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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.