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Finding the Fourth Proportional to 404,385.66, 558,048.60 and 223,099.16

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Solution

The fourth proportional to 404,385.66, 558,048.60 and 223,099.16 is: 307,874.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,385.66 : 558,048.60 = 223,099.16 : x
  2. Step 2: Convert to fraction form
    404,385.66/558,048.60 = 223,099.16/x
  3. Step 3: Cross multiply
    404,385.66x = 558,048.60 × 223,099.16
  4. Step 4: Simplify right side
    404,385.66x = 124,500,171,108.93
  5. Step 5: Solve for x
    x = 124,500,171,108.93/404,385.66
  6. Step 6: Final answer
    x = 307,874.84

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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.