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Finding the Fourth Proportional to 321,967.77, 444,336.20 and 186,007.51

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Solution

The fourth proportional to 321,967.77, 444,336.20 and 186,007.51 is: 256,702.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,967.77 : 444,336.20 = 186,007.51 : x
  2. Step 2: Convert to fraction form
    321,967.77/444,336.20 = 186,007.51/x
  3. Step 3: Cross multiply
    321,967.77x = 444,336.20 × 186,007.51
  4. Step 4: Simplify right side
    321,967.77x = 82,649,870,164.86
  5. Step 5: Solve for x
    x = 82,649,870,164.86/321,967.77
  6. Step 6: Final answer
    x = 256,702.31

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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.