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Finding the Fourth Proportional to 321,855.70, 444,058.12 and 185,871.69

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Solution

The fourth proportional to 321,855.70, 444,058.12 and 185,871.69 is: 256,443.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,855.70 : 444,058.12 = 185,871.69 : x
  2. Step 2: Convert to fraction form
    321,855.70/444,058.12 = 185,871.69/x
  3. Step 3: Cross multiply
    321,855.70x = 444,058.12 × 185,871.69
  4. Step 4: Simplify right side
    321,855.70x = 82,537,833,222.62
  5. Step 5: Solve for x
    x = 82,537,833,222.62/321,855.70
  6. Step 6: Final answer
    x = 256,443.60

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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.