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Finding the Fourth Proportional to 321,825.79, 444,129.77 and 185,857.28

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Solution

The fourth proportional to 321,825.79, 444,129.77 and 185,857.28 is: 256,488.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,825.79 : 444,129.77 = 185,857.28 : x
  2. Step 2: Convert to fraction form
    321,825.79/444,129.77 = 185,857.28/x
  3. Step 3: Cross multiply
    321,825.79x = 444,129.77 × 185,857.28
  4. Step 4: Simplify right side
    321,825.79x = 82,544,749,263.22
  5. Step 5: Solve for x
    x = 82,544,749,263.22/321,825.79
  6. Step 6: Final answer
    x = 256,488.92

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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.