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Finding the Fourth Proportional to 321,028.62, 443,024.13 and 185,060.09

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Solution

The fourth proportional to 321,028.62, 443,024.13 and 185,060.09 is: 255,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,028.62 : 443,024.13 = 185,060.09 : x
  2. Step 2: Convert to fraction form
    321,028.62/443,024.13 = 185,060.09/x
  3. Step 3: Cross multiply
    321,028.62x = 443,024.13 × 185,060.09
  4. Step 4: Simplify right side
    321,028.62x = 81,986,087,171.51
  5. Step 5: Solve for x
    x = 81,986,087,171.51/321,028.62
  6. Step 6: Final answer
    x = 255,385.60

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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.