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Finding the Fourth Proportional to 321,502.70, 482,155.55 and 222,300.38

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Solution

The fourth proportional to 321,502.70, 482,155.55 and 222,300.38 is: 333,382.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,502.70 : 482,155.55 = 222,300.38 : x
  2. Step 2: Convert to fraction form
    321,502.70/482,155.55 = 222,300.38/x
  3. Step 3: Cross multiply
    321,502.70x = 482,155.55 × 222,300.38
  4. Step 4: Simplify right side
    321,502.70x = 107,183,360,872.61
  5. Step 5: Solve for x
    x = 107,183,360,872.61/321,502.70
  6. Step 6: Final answer
    x = 333,382.46

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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.