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Finding the Fourth Proportional to 443,690.40, 665,601.12 and 163,187.04

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Solution

The fourth proportional to 443,690.40, 665,601.12 and 163,187.04 is: 244,804.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,690.40 : 665,601.12 = 163,187.04 : x
  2. Step 2: Convert to fraction form
    443,690.40/665,601.12 = 163,187.04/x
  3. Step 3: Cross multiply
    443,690.40x = 665,601.12 × 163,187.04
  4. Step 4: Simplify right side
    443,690.40x = 108,617,476,593.49
  5. Step 5: Solve for x
    x = 108,617,476,593.49/443,690.40
  6. Step 6: Final answer
    x = 244,804.66

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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.