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Finding the Fourth Proportional to 322,221.24, 484,301.43 and 266,418.72

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Solution

The fourth proportional to 322,221.24, 484,301.43 and 266,418.72 is: 400,429.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,221.24 : 484,301.43 = 266,418.72 : x
  2. Step 2: Convert to fraction form
    322,221.24/484,301.43 = 266,418.72/x
  3. Step 3: Cross multiply
    322,221.24x = 484,301.43 × 266,418.72
  4. Step 4: Simplify right side
    322,221.24x = 129,026,967,074.77
  5. Step 5: Solve for x
    x = 129,026,967,074.77/322,221.24
  6. Step 6: Final answer
    x = 400,429.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.