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Finding the Fourth Proportional to 352,136.46, 485,954.94 and 216,102.33

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Solution

The fourth proportional to 352,136.46, 485,954.94 and 216,102.33 is: 298,225.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,136.46 : 485,954.94 = 216,102.33 : x
  2. Step 2: Convert to fraction form
    352,136.46/485,954.94 = 216,102.33/x
  3. Step 3: Cross multiply
    352,136.46x = 485,954.94 × 216,102.33
  4. Step 4: Simplify right side
    352,136.46x = 105,015,995,619.39
  5. Step 5: Solve for x
    x = 105,015,995,619.39/352,136.46
  6. Step 6: Final answer
    x = 298,225.28

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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.