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Finding the Fourth Proportional to 447,722.81, 617,836.82 and 243,773.11

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Solution

The fourth proportional to 447,722.81, 617,836.82 and 243,773.11 is: 336,395.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,722.81 : 617,836.82 = 243,773.11 : x
  2. Step 2: Convert to fraction form
    447,722.81/617,836.82 = 243,773.11/x
  3. Step 3: Cross multiply
    447,722.81x = 617,836.82 × 243,773.11
  4. Step 4: Simplify right side
    447,722.81x = 150,612,002,637.34
  5. Step 5: Solve for x
    x = 150,612,002,637.34/447,722.81
  6. Step 6: Final answer
    x = 336,395.64

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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.