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Finding the Fourth Proportional to 404,660.60, 558,431.72 and 223,372.64

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Solution

The fourth proportional to 404,660.60, 558,431.72 and 223,372.64 is: 308,254.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,660.60 : 558,431.72 = 223,372.64 : x
  2. Step 2: Convert to fraction form
    404,660.60/558,431.72 = 223,372.64/x
  3. Step 3: Cross multiply
    404,660.60x = 558,431.72 × 223,372.64
  4. Step 4: Simplify right side
    404,660.60x = 124,738,363,647.12
  5. Step 5: Solve for x
    x = 124,738,363,647.12/404,660.60
  6. Step 6: Final answer
    x = 308,254.29

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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.