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Finding the Fourth Proportional to 321,892.65, 444,292.56 and 186,005.57

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Solution

The fourth proportional to 321,892.65, 444,292.56 and 186,005.57 is: 256,734.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,892.65 : 444,292.56 = 186,005.57 : x
  2. Step 2: Convert to fraction form
    321,892.65/444,292.56 = 186,005.57/x
  3. Step 3: Cross multiply
    321,892.65x = 444,292.56 × 186,005.57
  4. Step 4: Simplify right side
    321,892.65x = 82,640,888,648.10
  5. Step 5: Solve for x
    x = 82,640,888,648.10/321,892.65
  6. Step 6: Final answer
    x = 256,734.31

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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.