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Finding the Fourth Proportional to 321,502.82, 482,155.74 and 222,300.50

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Solution

The fourth proportional to 321,502.82, 482,155.74 and 222,300.50 is: 333,382.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,502.82 : 482,155.74 = 222,300.50 : x
  2. Step 2: Convert to fraction form
    321,502.82/482,155.74 = 222,300.50/x
  3. Step 3: Cross multiply
    321,502.82x = 482,155.74 × 222,300.50
  4. Step 4: Simplify right side
    321,502.82x = 107,183,462,079.87
  5. Step 5: Solve for x
    x = 107,183,462,079.87/321,502.82
  6. Step 6: Final answer
    x = 333,382.65

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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.