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Finding the Fourth Proportional to 551,143.44, 826,010.46 and 479,774.34

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Solution

The fourth proportional to 551,143.44, 826,010.46 and 479,774.34 is: 719,048.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,143.44 : 826,010.46 = 479,774.34 : x
  2. Step 2: Convert to fraction form
    551,143.44/826,010.46 = 479,774.34/x
  3. Step 3: Cross multiply
    551,143.44x = 826,010.46 × 479,774.34
  4. Step 4: Simplify right side
    551,143.44x = 396,298,623,279.60
  5. Step 5: Solve for x
    x = 396,298,623,279.60/551,143.44
  6. Step 6: Final answer
    x = 719,048.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.