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Finding the Fourth Proportional to 550,013.49, 823,740.84 and 534,878.64

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Solution

The fourth proportional to 550,013.49, 823,740.84 and 534,878.64 is: 801,073.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,013.49 : 823,740.84 = 534,878.64 : x
  2. Step 2: Convert to fraction form
    550,013.49/823,740.84 = 534,878.64/x
  3. Step 3: Cross multiply
    550,013.49x = 823,740.84 × 534,878.64
  4. Step 4: Simplify right side
    550,013.49x = 440,601,380,211.66
  5. Step 5: Solve for x
    x = 440,601,380,211.66/550,013.49
  6. Step 6: Final answer
    x = 801,073.77

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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.