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Finding the Fourth Proportional to 404,793.86, 558,381.35 and 261,553.91

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Solution

The fourth proportional to 404,793.86, 558,381.35 and 261,553.91 is: 360,793.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,793.86 : 558,381.35 = 261,553.91 : x
  2. Step 2: Convert to fraction form
    404,793.86/558,381.35 = 261,553.91/x
  3. Step 3: Cross multiply
    404,793.86x = 558,381.35 × 261,553.91
  4. Step 4: Simplify right side
    404,793.86x = 146,046,821,263.90
  5. Step 5: Solve for x
    x = 146,046,821,263.90/404,793.86
  6. Step 6: Final answer
    x = 360,793.08

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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.