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Finding the Fourth Proportional to 444,578.79, 666,331.12 and 216,532.60

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Solution

The fourth proportional to 444,578.79, 666,331.12 and 216,532.60 is: 324,537.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,578.79 : 666,331.12 = 216,532.60 : x
  2. Step 2: Convert to fraction form
    444,578.79/666,331.12 = 216,532.60/x
  3. Step 3: Cross multiply
    444,578.79x = 666,331.12 × 216,532.60
  4. Step 4: Simplify right side
    444,578.79x = 144,282,409,874.51
  5. Step 5: Solve for x
    x = 144,282,409,874.51/444,578.79
  6. Step 6: Final answer
    x = 324,537.32

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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.