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Finding the Fourth Proportional to 400,611.22, 552,843.61 and 219,334.66

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Solution

The fourth proportional to 400,611.22, 552,843.61 and 219,334.66 is: 302,681.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,611.22 : 552,843.61 = 219,334.66 : x
  2. Step 2: Convert to fraction form
    400,611.22/552,843.61 = 219,334.66/x
  3. Step 3: Cross multiply
    400,611.22x = 552,843.61 × 219,334.66
  4. Step 4: Simplify right side
    400,611.22x = 121,257,763,302.08
  5. Step 5: Solve for x
    x = 121,257,763,302.08/400,611.22
  6. Step 6: Final answer
    x = 302,681.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.