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Finding the Fourth Proportional to 404,468.64, 558,355.68 and 234,673.20

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Solution

The fourth proportional to 404,468.64, 558,355.68 and 234,673.20 is: 323,958.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,468.64 : 558,355.68 = 234,673.20 : x
  2. Step 2: Convert to fraction form
    404,468.64/558,355.68 = 234,673.20/x
  3. Step 3: Cross multiply
    404,468.64x = 558,355.68 × 234,673.20
  4. Step 4: Simplify right side
    404,468.64x = 131,031,114,163.78
  5. Step 5: Solve for x
    x = 131,031,114,163.78/404,468.64
  6. Step 6: Final answer
    x = 323,958.65

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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.