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Finding the Fourth Proportional to 321,999.39, 444,379.73 and 186,058.20

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Solution

The fourth proportional to 321,999.39, 444,379.73 and 186,058.20 is: 256,772.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,999.39 : 444,379.73 = 186,058.20 : x
  2. Step 2: Convert to fraction form
    321,999.39/444,379.73 = 186,058.20/x
  3. Step 3: Cross multiply
    321,999.39x = 444,379.73 × 186,058.20
  4. Step 4: Simplify right side
    321,999.39x = 82,680,492,680.29
  5. Step 5: Solve for x
    x = 82,680,492,680.29/321,999.39
  6. Step 6: Final answer
    x = 256,772.20

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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.