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Finding the Fourth Proportional to 382,039.65, 527,183.84 and 220,905.14

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Solution

The fourth proportional to 382,039.65, 527,183.84 and 220,905.14 is: 304,831.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,039.65 : 527,183.84 = 220,905.14 : x
  2. Step 2: Convert to fraction form
    382,039.65/527,183.84 = 220,905.14/x
  3. Step 3: Cross multiply
    382,039.65x = 527,183.84 × 220,905.14
  4. Step 4: Simplify right side
    382,039.65x = 116,457,616,240.49
  5. Step 5: Solve for x
    x = 116,457,616,240.49/382,039.65
  6. Step 6: Final answer
    x = 304,831.23

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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.