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Finding the Fourth Proportional to 477,994.50, 659,676.33 and 263,178.18

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Solution

The fourth proportional to 477,994.50, 659,676.33 and 263,178.18 is: 363,210.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,994.50 : 659,676.33 = 263,178.18 : x
  2. Step 2: Convert to fraction form
    477,994.50/659,676.33 = 263,178.18/x
  3. Step 3: Cross multiply
    477,994.50x = 659,676.33 × 263,178.18
  4. Step 4: Simplify right side
    477,994.50x = 173,612,415,918.48
  5. Step 5: Solve for x
    x = 173,612,415,918.48/477,994.50
  6. Step 6: Final answer
    x = 363,210.07

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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.