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Finding the Fourth Proportional to 444,320.64, 666,766.08 and 163,840.32

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Solution

The fourth proportional to 444,320.64, 666,766.08 and 163,840.32 is: 245,865.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,320.64 : 666,766.08 = 163,840.32 : x
  2. Step 2: Convert to fraction form
    444,320.64/666,766.08 = 163,840.32/x
  3. Step 3: Cross multiply
    444,320.64x = 666,766.08 × 163,840.32
  4. Step 4: Simplify right side
    444,320.64x = 109,243,167,912.35
  5. Step 5: Solve for x
    x = 109,243,167,912.35/444,320.64
  6. Step 6: Final answer
    x = 245,865.62

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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.