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Finding the Fourth Proportional to 443,601.65, 665,159.47 and 218,467.01

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Solution

The fourth proportional to 443,601.65, 665,159.47 and 218,467.01 is: 327,580.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,601.65 : 665,159.47 = 218,467.01 : x
  2. Step 2: Convert to fraction form
    443,601.65/665,159.47 = 218,467.01/x
  3. Step 3: Cross multiply
    443,601.65x = 665,159.47 × 218,467.01
  4. Step 4: Simplify right side
    443,601.65x = 145,315,400,584.09
  5. Step 5: Solve for x
    x = 145,315,400,584.09/443,601.65
  6. Step 6: Final answer
    x = 327,580.84

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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.